868. hadíth
وَ رَوَى أَبُو بَصِيرٍ عَنِ اَلصَّادِقِ عَلَيْهِ اَلسَّلاَمُ أَنَّهُ قَالَ: «لاَ بَأْسَ أَنْ تُؤَذِّنَ رَاكِباً أَوْ مَاشِياً أَوْ عَلَى غَيْرِ وُضُوءٍ وَ لاَ تُقِمْ وَ أَنْتَ رَاكِبٌ وَ لاَ جَالِسٌ إِلاَّ مِنْ عُذْرٍ أَوْ تَكُونَ فِي أَرْضٍ مَلَصَّةٍ.
Abu Basir narrated from Imam Jafar ibn Muhammad Al-Sadiq (a.s) that He said: "There is no issue if you give the adhan (call to prayer) while riding, walking, or without wudu (ritual purity). However, do not perform the iqamah (second call to prayer) while riding or sitting, unless there is an excuse, or if you are on slippery ground”.