902 - وَ كَانَ عَلِيٌّ عَلَيْهِ اَلسَّلاَمُ يُؤَذِّنُ وَ يُقِيمُ غَيْرُهُ وَ كَانَ يُقِيمُ وَ قَدْ أَذَّنَ غَيْرُهُ.
Hadith.902 - Imam Ali 
would sometimes give the adhan (call to prayer) while someone else would perform the iqamah (second call to prayer), and at other times, he would perform the iqamah after someone else had given the adhan.
