(10) The Rites of Pilgrimage
كتاب المناسك
(12a) Chapter: What one who is in the Sacred State must avoid - Section 1
(11) باب ما يجتنبه المحرم
Mishkat al-Masabih 2687 
Umm al-Husain said she saw Usama and Bilal, one of them holding the halter of God’s messenger’s she-camel, while the other raised his garment and sheltered him from the heat till he had thrown pebbles at the jamra of the ‘Aqaba. Muslim transmitted it.
وَعَنْ أُمِّ الْحُصَيْنِ قَالَتْ: رَأَيْتُ أُسَامَةَ وَبِلَالًا وَأَحَدُهُمَا آخِذٌ بِخِطَامِ نَاقَةِ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَالْآخَرُ رَافِعٌ ثَوْبَهُ يَسْتُرُهُ من الْحَرِّ حَتَّى رَمَى جَمْرَةَ الْعَقَبَةِ. رَوَاهُ مُسْلِمٌ
 صَحِيح  (الألباني)حكم :
Reference : Mishkat al-Masabih 2687
In-book reference : Book 10, Hadith 177