إِذَا أَذَّنْتَ فِي الطَّرِيقِ أَوْ فِي بَيْتِكَ ثُمَّ أَقَمْتَ فِي الْمَسْجِدِ أَجْزَأَكَ.
Hadith.901 - Abu Basir narrated from Imam Jafar ibn Muhammad Al-Sadiq (as) that He said: "If you give the adhan (call to prayer) on the road or in your home, and then perform the iqamah (second call to prayer) in the mosque, it suffices."