This hadith has been narrated on the authority of Abu Nadr with the same chain of transmitters, but he did not mention that he was mounting (riding on) his camel.
عَنْ أَبِي النَّضْرِ بِهَذَا الإِسْنَادِ وَلَمْ يَذْكُرْ وَهُوَ وَاقِفٌ عَلَى بَعِيرِهِ وَقَالَ عَنْ عُمَيْرٍ مَوْلَى أُمِّ الْفَضْلِ