It rained upon us as we were with the Messenger of Allah ﷺ. The Messenger of Allah (way peace be upon him) removed his cloth (from a part of his body) till the rain fell on it. We said: Messenger of Allah, why did you do this? He said: It is because it (the rainfall) has just come from the Exalted Lord. (Using translation from Muslim 898)   

قَالَ أَنَسٌ أَصَابَنَا وَنَحْنُ مَعَ رَسُولِ اللهِ ﷺ مَطَرٌ قَالَ فَحَسَرَ رَسُولُ اللهِ ﷺ ثَوْبَهُ حَتَّى أَصَابَهُ مِنَ الْمَطَرِ؛ فَقُلْنَا يَا رَسُولَ اللهِ لِمَ صَنَعْتَ هَذَا؟ قَالَ لِأَنَّهُ حَدِيثُ عَهْدٍ بِرَبِّهِ