Sahih al-Bukhari 630
Sahih al-Bukhari · Book 10: Call to Prayers (Adhaan) · If there are many travellers, Adhan and Iqama should be pronounced, (the same is to be observed) in 'Arafat and Al-Muzdalifa too
Narrated Malik bin Huwairith:
حَدَّثَنَا مُحَمَّدُ بْنُ يُوسُفَ ، قَالَ حَدَّثَنَا سُفْيَانُ ، عَنْ خَالِدٍ الْحَذَّاءِ ، عَنْ أَبِي قِلاَبَةَ ، عَنْ مَالِكِ بْنِ الْحُوَيْرِثِ ، قَالَ أَتَى رَجُلاَنِ النَّبِيَّ صلى الله عليه وسلم يُرِيدَانِ السَّفَرَ فَقَالَ النَّبِيُّ صلى الله عليه وسلم " إِذَا أَنْتُمَا خَرَجْتُمَا فَأَذِّنَا ثُمَّ أَقِيمَا ثُمَّ لِيَؤُمَّكُمَا أَكْبَرُكُمَا " .
Two men came to the Prophet (ﷺ) with the intention of a journey. The Prophet (ﷺ) said, "When (both of) you set out, pronounce Adhan and then Iqama and the oldest of you should lead the prayer."