Hadith 10:197
‘Ali reported the Prophet as saying, “There is no divorce before marriage, no manumission till one has possession, no continuous fasting, no orphan hood after the age of puberty, no suckling after weaning, and no silence all day up to the night”.* * Observing a complete day's silence as a religious practice is rejected. It is transmitted in Sharh as-sunna .
وَعَنْ عَلِيٍّ رَضِيَ اللَّهُ عَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «لَا طَلَاقَ قَبْلَ نِكَاحٍ وَلَا عَتَاقَ إِلَّا بَعْدَ مِلْكٍ وَلَا وِصَالَ فِي صِيَامٍ وَلَا يُتْمَ بَعْدَ احْتِلَامٍ وَلَا رَضَاعَ بَعْدَ فِطَامٍ وَلَا صَمْتَ يَوْمٍ إِلَى اللَّيْلِ» . رَوَاهُ فِي شَرْحِ السُّنَّةِ
Original Reference: Mishkat al-Masabih 3281