"I heard Ibn 'Umar say: 'The Messenger of Allah forbade Ruqba and said: "Whoever is given something on the basis of Ruqba, it belongs to him."'" (Using translation from Nasāʾī 3734)
سَمِعْتُ ابْنَ عُمَرَ يَقُولُ نَهَى رَسُولُ اللهِ ﷺ عَنِ الرُّقْبَى وَقَالَ «مَنْ أُرْقِبَ رُقْبَى فَهِيَ لَهُ»