It was narrated from Ibrahim bin Muhammad bin Al-Muntashir, from his father, that he was in the Masjid of ‘Amr bin ShurahbIi and the Iqamah for prayer was said, and they were waiting. He came and said: “I was praying Witr.” ‘Abdullah was asked: “Is there any Witr after the Adhan?” He said: “Yes, and after the Iqamah.” And he narrated that the Prophet صلی اللہ علیہ وآلہ وسلم once slept and missed the prayer until the sun had risen, then he prayed. (Sahih)