‏الصلاة : Hadeeth No:1922 The same hadith is narrated on the authority of 'Umar b. Ata' but with this modification: When he (the Imam) pronounced salutation I stood up at my place. No mention was made of the Imam in it....

‏الصلاة : Hadeeth No:1805 Abu Sa'id al-Khudri reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: No prayer is valid after the 'Asr prayer till the sun sets and no prayer is valid after the dawn prayer till the sun rises....