‏الصلاة : Hadeeth No:1886 Ja'far b. Muhammad said on the authority of his father: I heard Jabir b. 'Abdullah saying that in the sermon of the Prophet of Allaah (sallAllaahu alayhi wa sallam) he praised Allaah, lauded Him (and subsequently said [other words] and raised his voice, and the rest of the hadith is the same)....

‏الزهد والرقائق‏ : Hadeeth No:7132 The son of Abu Said al-Khudri reported on the authority of his father that Allaah's Messenger (sallAllaahu alayhi wa sallam) said. When one of you yawns while engaged in prayer, he should try to restrain so far as it lies in his power, since it is the Satan that enter therein....