The Book of Prayer - Friday
وَحَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ ح وَحَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، عَنْ مَالِكِ بْنِ أَنَسٍ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم ذَكَرَ يَوْمَ الْجُمُعَةِ فَقَالَ " فِيهِ سَاعَةٌ لاَ يُوَافِقُهَا عَبْدٌ مُسْلِمٌ وَهُوَ يُصَلِّي يَسْأَلُ اللَّهَ شَيْئًا إِلاَّ أَعْطَاهُ إِيَّاهُ " . زَادَ قُتَيْبَةُ فِي رِوَايَتِهِ وَأَشَارَ بِيَدِهِ يُقَلِّلُهَاAbu Huraira reported Allah's Messenger (ﷺ) as saying:There is a time on Friday at which no Muslim servant would pray and would ask Allah for a thing (that is good) but He would give it to him. Qutaiba pointed with the help of his hand that it (the time) is short
From Sahih Muslim, whose reports the scholars accept as authentic.