Bulugh al-Maram
Book 2, Hadith 388
Arabic hadith text
وَقَدْ اِخْتُلَفَ فِيهَا عَلَى أَكْثَرَ مِنْ أَرْبَعِينَ قَوْلًا, أَمْلَيْتُهَا فِي"شَرْحِ اَلْبُخَارِيِّ "1 .1 - انظر. "فتح الباري" (2/416) وما بعدها.
Translation
More than forty different sayings were narrated about this (special fortune time on Friday), and I have detailed them in (my book) 'Sharh al-Bukhari'.