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'A'isha reported that when the Messenger of Allah (ﷺ) missed the night prayer due to pain or any other reason, he observed twelve rak'ahs during the daytime.

When the Messenger of Allah (ﷺ) did not pray at night because he was prevented from doing so by sleep- meaning, sleep overwhelmed him- or by pain, he would pray twelve rak'ahs during the day.

When Messenger of Allah (ﷺ) missed the optional night Salat (Tahajjud) due to pain or any other reason, he would perform twelve Rak'ah during the day time. <b>[Muslim]</b>.

"If the Prophet (ﷺ) did not perform the ritual prayer during the night, because sleep had prevented him, or his eyes had been too weary, during the daytime, he would perform twelve cycles of ritual prayer during the daytime.”