He was in the masjid of 'Amr bin Shurahbil 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 ﷺ once slept and missed the prayer until the sun had risen, then he prayed.  

وَسُئِلَ عَبْدُ اللَّهِ هَلْ بَعْدَ الأَذَانِ وَتْرٌ قَالَ نَعَمْ وَبَعْدَ الإِقَامَةِ وَحَدَّثَ عَنِ النَّبِيِّ ﷺ أَنَّهُ نَامَ عَنِ الصَّلاَةِ حَتَّى طَلَعَتِ الشَّمْسُ ثُمَّ صَلَّى