427 (صحيح)
“إذا تثاءب أحدكم في الصلاة فليكظم ما ستطاع فإن الشيطان يدخل”
(م د) عن أبي سعيد.
427 – It is narrated from the words of Abu Sa’id al-Khudri, may Allah be pleased with him, that the Messenger of Allah (peace and blessings of Allaah be upon him) said:
“If any of you (wants to) yawn while praying, let him suppress the yawning as much as possible, (for otherwise) the shaitan will certainly penetrate (into him). ”
This hadith was narrated by Muslim 2995 and Abu Dawud 5027.
Sheikh al-Albani called the hadith authentic. See Saheeh al-jami ‘as-saghir 427.