Umm al Hussain said We performed the Farewell Pilgrimage along with the Prophet ﷺ . I saw Usamah and Bilal one of them holding the halter of the she-Camel of the Prophet ﷺ, while the other raising his garment and sheltering from the heat till he had thrown pebbles at the jamrah of the ‘Aqabah. (Using translation from Abū Dāʾūd 1834)   

مَعَ النَّبِيِّ ﷺ حَجَّةَ الْوَدَاعِ فَرَأَيْتُ أُسَامَةَ وَبِلَالًا ؓ وَأَحَدُهُمَا آخِذٌ بِخِطَامِ نَاقَتِهِ وَ الْآخَرُ رَافِعٌ ثَوْبَهُ يَسْتُرُهُ مِنَ الْحَرِّ حَتَّى رَمَى جَمْرَةَ الْعَقَبَةِ  

[Machine] In his speech or others', he used to descend under the tree and seek shade with a piece of cloth or a covering.  

فِي حَدِيثِهِ أَوْ غَيْرِهِ كَانَ يَنْزِلُ تَحْتَ الشَّجَرَةِ وَيَسْتَظِلُّ بِنِطْعٍ أَوْ بِكِسَاءٍ وَالشَّيْءِ