Abdullah bin Tawus عبد الله بن طاوس · The Book of ar-Ruqba

"Abdul-Jabbar bin Al-'Ala' narrated to us, he said: 'Sufyan narrated to us from Ibn Abi Najih, from Tawus, and perhaps it is from Ibn 'Abbas, who said: There is no Ruqba, and whoever gives a gift on the basis of Ruqba, it is part of his estate.'"

"Do not give away your property on the basis of Ruqba, for whoever gives a gift on that basis, it belongs to the one to whom he gave it."