As for the hadith of Ibn Mas'ud, it refers to the Life Decree, that which has been decreed about a person's life. As it is mentioned in the hadith narrated by Ibn Mas'ud (radiallahu anhu) that the Messenger, "The Truthful and The Believed," (ﷺ) said:
"𝐄𝐚𝐜𝐡 𝐨𝐧𝐞 𝐨𝐟 𝐲𝐨𝐮 𝐢𝐬 𝐜𝐨𝐥𝐥𝐞𝐜𝐭𝐞𝐝 𝐢𝐧 𝐭𝐡𝐞 𝐰𝐨𝐦𝐛 𝐨𝐟 𝐡𝐢𝐬 𝐦𝐨𝐭𝐡𝐞𝐫 𝐟𝐨𝐫 𝐟𝐨𝐫𝐭𝐲 𝐝𝐚𝐲𝐬, 𝐚𝐧𝐝 𝐭𝐡𝐞𝐧 𝐭𝐮𝐫𝐧𝐬 𝐢𝐧𝐭𝐨 𝐚 𝐜𝐥𝐨𝐭 𝐟𝐨𝐫 𝐚𝐧 𝐞𝐪𝐮𝐚𝐥 𝐩𝐞𝐫𝐢𝐨𝐝 (𝐨𝐟 𝐟𝐨𝐫𝐭𝐲 𝐝𝐚𝐲𝐬) 𝐚𝐧𝐝 𝐭𝐮𝐫𝐧𝐬 𝐢𝐧𝐭𝐨 𝐚 𝐩𝐢𝐞𝐜𝐞 𝐨𝐟 𝐟𝐥𝐞𝐬𝐡 𝐟𝐨𝐫 𝐚 𝐬𝐢𝐦𝐢𝐥𝐚𝐫 𝐩𝐞𝐫𝐢𝐨𝐝 (𝐨𝐟 𝐟𝐨𝐫𝐭𝐲) 𝐝𝐚𝐲𝐬 𝐚𝐧𝐝 𝐭𝐡𝐞𝐧 𝐀𝐥𝐥𝐚𝐡 𝐬𝐞𝐧𝐝𝐬 𝐚𝐧 𝐚𝐧𝐠𝐞𝐥 𝐚𝐧𝐝 𝐨𝐫𝐝𝐞𝐫𝐬 𝐡𝐢𝐦 𝐭𝐨 𝐰𝐫𝐢𝐭𝐞 𝐟𝐨𝐮𝐫 𝐭𝐡𝐢𝐧𝐠𝐬, 𝐢𝐞., 𝐡𝐢𝐬 𝐩𝐫𝐨𝐯𝐢𝐬𝐢𝐨𝐧, 𝐡𝐢𝐬 𝐚𝐠𝐞, 𝐡𝐢𝐬 𝐚𝐜𝐭𝐢𝐨𝐧𝐬, 𝐚𝐧𝐝 𝐰𝐡𝐞𝐭𝐡𝐞𝐫 𝐡𝐞 𝐰𝐢𝐥𝐥 𝐛𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐰𝐫𝐞𝐭𝐜𝐡𝐞𝐝 𝐨𝐫 𝐭𝐡𝐞 𝐛𝐥𝐞𝐬𝐬𝐞𝐝 (𝐢𝐧 𝐭𝐡𝐞 𝐇𝐞𝐫𝐞𝐚𝐟𝐭𝐞𝐫)."
[Collected by al-Bukhâri, The Bok of al-Qadar, hadith no. (6594); Muslim, The Book of al-Qadar, hadìth no. (2643)]
This is called the Life Decree. Also there is the Yearly decree, and that is Laylatu al-Qadar. As Allah says:
"𝑾𝒆 𝒔𝒆𝒏𝒕 𝒊𝒕 (𝒕𝒉𝒊𝒔 𝑸𝒖𝒓'â𝒏) 𝒅𝒐𝒘𝒏 𝒐𝒏 𝒂 𝒃𝒍𝒆𝒔𝒔𝒆𝒅 𝒏𝒊𝒈𝒉𝒕 (𝒊𝒆., 𝒕𝒉𝒆 𝑵𝒊𝒈𝒉𝒕 𝒐𝒇 𝒂𝒍-𝑸𝒂𝒅𝒂𝒓). 𝑽𝒆𝒓𝒊𝒍𝒚, 𝑾𝒆 𝒂𝒓𝒆 𝒆𝒗𝒆𝒓 𝒘𝒂𝒓𝒏𝒊𝒏𝒈 (𝒎𝒂𝒏𝒌𝒊𝒏𝒅 𝒕𝒉𝒂𝒕 𝑶𝒖𝒓 𝒕𝒐𝒓𝒎𝒆𝒏𝒕 𝒘𝒊𝒍𝒍 𝒓𝒆𝒂𝒄𝒉 𝒕𝒉𝒐𝒔𝒆 𝒘𝒉𝒐 𝒅𝒊𝒔𝒃𝒆𝒍𝒊𝒆𝒗𝒆 𝒊𝒏 𝑶𝒖𝒓 𝑶𝒏𝒆𝒏𝒆𝒔𝒔 𝒐𝒇 𝑳𝒐𝒓𝒅𝒔𝒉𝒊𝒑 𝒂𝒏𝒅 𝒊𝒏 𝑶𝒖𝒓 𝑶𝒏𝒆𝒏𝒆𝒔𝒔 𝒐𝒇 𝒘𝒐𝒓𝒔𝒉𝒊𝒑). 𝑻𝒉𝒆𝒓𝒆𝒊𝒏 (𝒕𝒉𝒂𝒕 𝒏𝒊𝒈𝒉𝒕) 𝒊𝒔 𝒅𝒆𝒄𝒓𝒆𝒆𝒅 𝒆𝒗𝒆𝒓𝒚 𝒎𝒂𝒕𝒕𝒆𝒓 𝒐𝒇 𝒐𝒓𝒅𝒂𝒊𝒏𝒎𝒆𝒏𝒕𝒔." [Ad-Dukhân:3-4]
In this night, Allah writes down that which will occur to the slaves from righteous and evil deeds, trials and tribulations, and other matters similar to this. This is called Yearly Decree which Allah decrees in this night.
In addition to these previous types of Divine Decree, there is the daily decree, and it refers to what the slaves do daily and what the Angels write about them day by day.
*[𝐛𝐞𝐥𝐢𝐞𝐯𝐢𝐧𝐠 𝐢𝐧] meaning: the texts. It is not to be asked "why did Allah do this or that, and why did Allah decree this and why did He command with this and prohibit this." Likewise, [𝐈𝐭 𝐢𝐬 𝐧𝐨𝐭 𝐭𝐨 𝐛𝐞 𝐚𝐬𝐤𝐞𝐝, 𝐰𝐡𝐲 𝐨𝐫 𝐡𝐨𝐰] Rather it is only upon us to believe and submit, and feel at ease with the decree, because it may be the case that these questions derive from opposing Allah His Divine Decree, His Legislation, and His command and prohibition. So it is not upon you except but to submit, especially with this matter of the Divine Decree. Because it is as they say: "the Secret of Allah- -The Blessed, The Most High." That which you know of it, praise Allah; and that which you have no knowledge about, it is incumbent upon you to submit.
[𝐈𝐭 𝐢𝐬 𝐧𝐨𝐭 𝐭𝐨 𝐛𝐞 𝐚𝐬𝐤𝐞𝐝 𝐰𝐡𝐲 𝐨𝐫 𝐡𝐨𝐰, 𝐫𝐚𝐭𝐡𝐞𝐫 𝐢𝐭 𝐢𝐬 𝐨𝐧𝐥𝐲 𝐛𝐞𝐥𝐢𝐞𝐯𝐢𝐧𝐠 𝐚𝐧𝐝 𝐚𝐟𝐟𝐢𝐫𝐦𝐢𝐧𝐠 𝐭𝐡𝐞𝐦]: This is obligatory upon every Muslim, and it is from the prerequisites of the Declaration of Faith, "No deity deserves to be worshipped in truth except Allah, and that Muhammad is the Messenger of Allah," this entails that you have surrendered to Allah, in that which He commands with, prohibits, legislates, and also in that which He decrees upon you, whether good or bad.
"𝐄𝐚𝐜𝐡 𝐨𝐧𝐞 𝐨𝐟 𝐲𝐨𝐮 𝐢𝐬 𝐜𝐨𝐥𝐥𝐞𝐜𝐭𝐞𝐝 𝐢𝐧 𝐭𝐡𝐞 𝐰𝐨𝐦𝐛 𝐨𝐟 𝐡𝐢𝐬 𝐦𝐨𝐭𝐡𝐞𝐫 𝐟𝐨𝐫 𝐟𝐨𝐫𝐭𝐲 𝐝𝐚𝐲𝐬, 𝐚𝐧𝐝 𝐭𝐡𝐞𝐧 𝐭𝐮𝐫𝐧𝐬 𝐢𝐧𝐭𝐨 𝐚 𝐜𝐥𝐨𝐭 𝐟𝐨𝐫 𝐚𝐧 𝐞𝐪𝐮𝐚𝐥 𝐩𝐞𝐫𝐢𝐨𝐝 (𝐨𝐟 𝐟𝐨𝐫𝐭𝐲 𝐝𝐚𝐲𝐬) 𝐚𝐧𝐝 𝐭𝐮𝐫𝐧𝐬 𝐢𝐧𝐭𝐨 𝐚 𝐩𝐢𝐞𝐜𝐞 𝐨𝐟 𝐟𝐥𝐞𝐬𝐡 𝐟𝐨𝐫 𝐚 𝐬𝐢𝐦𝐢𝐥𝐚𝐫 𝐩𝐞𝐫𝐢𝐨𝐝 (𝐨𝐟 𝐟𝐨𝐫𝐭𝐲) 𝐝𝐚𝐲𝐬 𝐚𝐧𝐝 𝐭𝐡𝐞𝐧 𝐀𝐥𝐥𝐚𝐡 𝐬𝐞𝐧𝐝𝐬 𝐚𝐧 𝐚𝐧𝐠𝐞𝐥 𝐚𝐧𝐝 𝐨𝐫𝐝𝐞𝐫𝐬 𝐡𝐢𝐦 𝐭𝐨 𝐰𝐫𝐢𝐭𝐞 𝐟𝐨𝐮𝐫 𝐭𝐡𝐢𝐧𝐠𝐬, 𝐢𝐞., 𝐡𝐢𝐬 𝐩𝐫𝐨𝐯𝐢𝐬𝐢𝐨𝐧, 𝐡𝐢𝐬 𝐚𝐠𝐞, 𝐡𝐢𝐬 𝐚𝐜𝐭𝐢𝐨𝐧𝐬, 𝐚𝐧𝐝 𝐰𝐡𝐞𝐭𝐡𝐞𝐫 𝐡𝐞 𝐰𝐢𝐥𝐥 𝐛𝐞 𝐨𝐟 𝐭𝐡𝐞 𝐰𝐫𝐞𝐭𝐜𝐡𝐞𝐝 𝐨𝐫 𝐭𝐡𝐞 𝐛𝐥𝐞𝐬𝐬𝐞𝐝 (𝐢𝐧 𝐭𝐡𝐞 𝐇𝐞𝐫𝐞𝐚𝐟𝐭𝐞𝐫)."
[Collected by al-Bukhâri, The Bok of al-Qadar, hadith no. (6594); Muslim, The Book of al-Qadar, hadìth no. (2643)]
This is called the Life Decree. Also there is the Yearly decree, and that is Laylatu al-Qadar. As Allah says:
"𝑾𝒆 𝒔𝒆𝒏𝒕 𝒊𝒕 (𝒕𝒉𝒊𝒔 𝑸𝒖𝒓'â𝒏) 𝒅𝒐𝒘𝒏 𝒐𝒏 𝒂 𝒃𝒍𝒆𝒔𝒔𝒆𝒅 𝒏𝒊𝒈𝒉𝒕 (𝒊𝒆., 𝒕𝒉𝒆 𝑵𝒊𝒈𝒉𝒕 𝒐𝒇 𝒂𝒍-𝑸𝒂𝒅𝒂𝒓). 𝑽𝒆𝒓𝒊𝒍𝒚, 𝑾𝒆 𝒂𝒓𝒆 𝒆𝒗𝒆𝒓 𝒘𝒂𝒓𝒏𝒊𝒏𝒈 (𝒎𝒂𝒏𝒌𝒊𝒏𝒅 𝒕𝒉𝒂𝒕 𝑶𝒖𝒓 𝒕𝒐𝒓𝒎𝒆𝒏𝒕 𝒘𝒊𝒍𝒍 𝒓𝒆𝒂𝒄𝒉 𝒕𝒉𝒐𝒔𝒆 𝒘𝒉𝒐 𝒅𝒊𝒔𝒃𝒆𝒍𝒊𝒆𝒗𝒆 𝒊𝒏 𝑶𝒖𝒓 𝑶𝒏𝒆𝒏𝒆𝒔𝒔 𝒐𝒇 𝑳𝒐𝒓𝒅𝒔𝒉𝒊𝒑 𝒂𝒏𝒅 𝒊𝒏 𝑶𝒖𝒓 𝑶𝒏𝒆𝒏𝒆𝒔𝒔 𝒐𝒇 𝒘𝒐𝒓𝒔𝒉𝒊𝒑). 𝑻𝒉𝒆𝒓𝒆𝒊𝒏 (𝒕𝒉𝒂𝒕 𝒏𝒊𝒈𝒉𝒕) 𝒊𝒔 𝒅𝒆𝒄𝒓𝒆𝒆𝒅 𝒆𝒗𝒆𝒓𝒚 𝒎𝒂𝒕𝒕𝒆𝒓 𝒐𝒇 𝒐𝒓𝒅𝒂𝒊𝒏𝒎𝒆𝒏𝒕𝒔." [Ad-Dukhân:3-4]
In this night, Allah writes down that which will occur to the slaves from righteous and evil deeds, trials and tribulations, and other matters similar to this. This is called Yearly Decree which Allah decrees in this night.
In addition to these previous types of Divine Decree, there is the daily decree, and it refers to what the slaves do daily and what the Angels write about them day by day.
*[𝐛𝐞𝐥𝐢𝐞𝐯𝐢𝐧𝐠 𝐢𝐧] meaning: the texts. It is not to be asked "why did Allah do this or that, and why did Allah decree this and why did He command with this and prohibit this." Likewise, [𝐈𝐭 𝐢𝐬 𝐧𝐨𝐭 𝐭𝐨 𝐛𝐞 𝐚𝐬𝐤𝐞𝐝, 𝐰𝐡𝐲 𝐨𝐫 𝐡𝐨𝐰] Rather it is only upon us to believe and submit, and feel at ease with the decree, because it may be the case that these questions derive from opposing Allah His Divine Decree, His Legislation, and His command and prohibition. So it is not upon you except but to submit, especially with this matter of the Divine Decree. Because it is as they say: "the Secret of Allah- -The Blessed, The Most High." That which you know of it, praise Allah; and that which you have no knowledge about, it is incumbent upon you to submit.
[𝐈𝐭 𝐢𝐬 𝐧𝐨𝐭 𝐭𝐨 𝐛𝐞 𝐚𝐬𝐤𝐞𝐝 𝐰𝐡𝐲 𝐨𝐫 𝐡𝐨𝐰, 𝐫𝐚𝐭𝐡𝐞𝐫 𝐢𝐭 𝐢𝐬 𝐨𝐧𝐥𝐲 𝐛𝐞𝐥𝐢𝐞𝐯𝐢𝐧𝐠 𝐚𝐧𝐝 𝐚𝐟𝐟𝐢𝐫𝐦𝐢𝐧𝐠 𝐭𝐡𝐞𝐦]: This is obligatory upon every Muslim, and it is from the prerequisites of the Declaration of Faith, "No deity deserves to be worshipped in truth except Allah, and that Muhammad is the Messenger of Allah," this entails that you have surrendered to Allah, in that which He commands with, prohibits, legislates, and also in that which He decrees upon you, whether good or bad.