"'Umra and Ruqba are not proper. Whoever gives something on the basis of 'Umra or Ruqba, it belongs to the one to whom he gave it on that basis, both during his lifetime and after his death." Hanzalah narrated it in Mursal form.  

لاَ تَصْلُحُ الْعُمْرَى وَلاَ الرُّقْبَى فَمَنْ أَعْمَرَ شَيْئًا أَوْ أَرْقَبَهُ فَإِنَّهُ لِمَنْ أُعْمِرَهُ وَأُرْقِبَهُ حَيَاتَهُ وَمَوْتَهُ أَرْسَلَهُ حَنْظَلَةُ  

"Habib bin Abi Thabit informed us from Ibn 'Umar, that the Messenger of Allah said: 'There is no 'Umra and no Ruqba. Whoever is given something on the basis of 'Umra or Ruqba, it belongs to him for the rest of his life and after he dies.'"  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ عُمْرَى وَلاَ رُقْبَى فَمَنْ أُعْمِرَ شَيْئًا أَوْ أُرْقِبَهُ فَهُوَ لَهُ حَيَاتَهُ وَمَمَاتَهُ  

'Ata' informed me, from Habib bin Abi Thabit, from Ibn 'Umar -and he did not hear it from him- he said: 'Messenger of Allah said: "There is no 'Umra and no Ruqba. Whoever is given something on the basis of 'Umra or Ruqba, it belongs to him for the rest of his life and after he dies."' 'Ata' said: "It belongs to the other."  

قَالَ رَسُولُ اللَّهِ ﷺ لاَ عُمْرَى وَلاَ رُقْبَى فَمَنْ أُعْمِرَ شَيْئًا أَوْ أُرْقِبَهُ فَهُوَ لَهُ حَيَاتَهُ وَمَمَاتَهُ قَالَ عَطَاءٌ هُوَ لِلآخَرِ  

"Habib bin Abi Thabit informed us from Ibn 'Umar, that the Messenger of Allah said: 'There is no 'Umra and no Ruqba. Whoever is given something on the basis of 'Umra or Ruqba, it belongs to him for the rest of his life and after he dies.'" (Using translation from Nasāʾī 3732)  

أَنَّهُ قَالَ قَالَ رَسُولُ اللهِ ﷺ لَا عُمْرَى وَلَا رُقْبَى فَمَنْ أُعْمِرَ شَيْئًا أَوْ أُرْقِبَهُ فَهُوَ لَهُ حَيَاتَهُ وَمَمَاتَهُ  

"لا عُمْرَى وَلا رُقْبَى، فَمَنْ أُعْمرَ شَيئًا أَوْ أُرْقِبَهُ فَهُوَ لَهُ حَيَاتَهُ وَمَمَاتَهُ".