(39) باب اسْتِحْبَابِ صَوْمِ سِتَّةِ أَيَّامٍ مِنْ شَوَّالٍ اتِّبَاعًا لِرَمَضَانَ
Abu Ayyub reported a hadith like this (through another chain of transmitters). (RU)
Reference (RU): Sahih Muslim 1164 c (RU)
In-book reference (RU): Book 13, Hadith 266 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 6, Hadith 2616 (RU)