‏الصلاة : Hadeeth No:1670 Shu'ba reported this hadith with the same chain of transmitters, but he made no mention that Shu'ba was in doubt and what follows subsequently....

‏الصلاة : Hadeeth No:2122 Abu Marthad al-Ghanawi reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Do not pray facing towards the graves, and do not sit on them....