‏البيوع : Hadeeth No:3651 Abu Huraira (Allaah be pleased with him) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: He who bought foodgrain should not sell it until he had measured it. In the narration of Abu Bakr there the word is Ibta' instead of Ishtara....

‏الصلاة : Hadeeth No:879 Abu Sa'id al-Khudri reported: The Messenger of Allaah (sallAllaahu alayhi wa sallam) saw people at the end of the mosque, and then the (above-mentioned hadith) was narrated....