Rasulullah's Miracle which made a community to embrace Islam...!

Imran b. Husain reported:

I was with the Apostle of Allah (Sallallähu alaihi wa sallam) in a journey. He urged me to go to find out water along with other riders, for we felt very thirsty. We were traveling when we came across a woman who was sitting (on a camel) with her feet hanging over two water bags.

We said to her: "How far is water available?"

She said: "very far. You cannot get water."

We (again) said: "How much distance is there between (the residence of) your family and water?"

She said: "It is a day and night journey."

We said to her: "You go to the Messenger of Allah."

 She said: "Who is the Messenger of Allah?"

 We somehow managed to bring her to the Messenger of Allah (Sallallähu alaihi wa sallam) and he asked about her, and she informed him as she had informed us that she was a widow having orphan children.

He ordered that her camel should be made to kneal down and he gargled in the opening (of her leather water-bag). The camel was then raised up and we forty thirsty men drank water till we were completely satisfied, and we filled up all leather water-bags and water-skins that we had with us and we washed our companions, but we did not make any camel drink, and (the leather water-bags) were about to burst (on account of excess of water).

He (The Prophet) then said: "Bring whatever you have with you."

So we collected the bits (of estable things) and dates and packed them up in a bundle, and said to her: "Take it away. This is meant for your children, and know that we have not its any way done any loss to your water."

When she came to her family she said: I have met the greatest magician amongst human beings, or he is an apostle, as he claims to be, and she then narrated what had happened and Allah guided aright those people through that woman. She affirmed her faith in Islam and so did the people embrace Islam.

(Sahih Muslim)