that when the Messenger of Allah ﷺ missed the night prayer due to pain or any other reason, he observed twelve rakahs during the daytime.

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ إِذَا فَاتَتْهُ الصَّلاَةُ مِنَ اللَّيْلِ مِنْ وَجَعٍ أَوْ غَيْرِهِ صَلَّى مِنَ النَّهَارِ ثِنْتَىْ عَشْرَةَ رَكْعَةً.

from the Messenger of Allah ﷺ who said, "Allah ﷻ stretches out His Hand during the night to accept the repentance of the sinners of the day, and stretches out His Hand during the day to accept the repentance of the sinners of the night. ˹This will continue˺ until the sun rises from the west.

عَنِ النَّبِيِّ ﷺ قَالَ: «إِنَّ اللَّهَ ﷻ يَبْسُطُ يَدَهُ بِاللَّيْلِ لِيَتُوبَ مُسِيءُ النَّهَارِ، وَيَبْسُطُ يَدَهُ بِالنَّهَارِ لِيَتُوبَ مُسِيءُ اللَّيْلِ, حَتَّى تَطْلُعَ الشَّمْسُ مِنْ مَغْرِبِهَا۔»