Sunan an-Nasa'i, Volume 4, Book 33, Hadith 3738 (DarusSalam) ⓘ

Zakariyya bin Yahya informed us, he said: "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.'"

أَخْبَرَنَا زَكَرِيَّا بْنُ يَحْيَى، قَالَ حَدَّثَنَا عَبْدُ الْجَبَّارِ بْنُ الْعَلاَءِ، قَالَ حَدَّثَنَا سُفْيَانُ، عَنِ ابْنِ أَبِي نَجِيحٍ، عَنْ طَاوُسٍ، لَعَلَّهُ عَنِ ابْنِ عَبَّاسٍ، قَالَ لاَ رُقْبَى فَمَنْ أُرْقِبَ شَيْئًا فَهُوَ سَبِيلُ الْمِيرَاثِ ‏.‏