Sa'id bin Salm al-Qudah سعيد بن سالم القداح · The Book of Endowments

"I was allocated some land of Khaibar. I came to the Messenger of Allah and said: 'I have acquired some land and I have never acquired any wealth that is dearer to me or more precious than it.' He said: 'If you wish, you can give it in charity.'" So he gave it in charity on condition that it would not be bought or given away, for the poor, relatives, slaves, guests and wayfarers. And there is no sin on…