Once when Hazrat Muhammad [PBUH} was child of 8 years or somewhat above 8 there was drought in Mecca and every one was worried because of the problems which were caused due to absence of rain from a long time.
Hazrat Abu Talib said to little children to pray for rain including Hazrat Muhammad [PBUH] Hazrat Muhammad [PBUH] was by born Prophet.
He pointed His finger towards sky.There were no clouds in sky but suddenly clouds started coming from every side and rain started.