(33) باب النَّهْىِ عَنِ الْجُلُوسِ، عَلَى الْقَبْرِ وَالصَّلاَةِ عَلَيْهِ
Abu Marthad al-Ghanawi reported Allah's Messenger (ﷺ) as saying:
Do not sit on the graves and do not pray facing towards them. (RU)
Reference (RU): Sahih Muslim 972 a (RU)
In-book reference (RU): Book 11, Hadith 126 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 2121 (RU)