I heard Messenger of Allah ﷺ saying, "whoever desires an expansion in his sustenance and age, should keep good relations with his Kith and kin."  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ مَنْ سَرَّهُ أَنْ يُبْسَطَ لَهُ رِزْقُهُ أَوْ يُنْسَأَ لَهُ فِي أَثَرِهِ فَلْيَصِلْ رَحِمَهُ  

[Machine] The Prophet ﷺ said: "Whoever desires that Allah increases his provision and extends his lifespan, then he should maintain good relations with his relatives."  

أَنَّ النَّبِيَّ ﷺ قَالَ مَنْ سَرَّهُ أَنْ يُعَظِّمَ اللهُ رِزْقَهُ وَأَنْ يَمُدَّ فِي أَجَلِهِ فَلْيَصِلْ رَحِمَهُ  

I heard Messenger of Allah ﷺ as saying: He who is desirous that his means of sustenance should be expanded for him or his age may be lengthened, should join the tie of relationship. (Using translation from Muslim 2557a)  

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «مَنْ سَرَّهُ أَنْ يُبْسَطَ عَلَيْهِ رِزْقُهُ أَوْ يُنْسَأَ فِي أَجَلِهِ فَلْيَصِلْ رَحِمَهُ»  

"مَنْ سَرَّهُ أَنْ يُبْسَطَ لَهُ فِي رزْقهِ، وَأَنْ يُنْسَأَ لَهُ في أَثَرِهِ فَلْيَصِلْ رَحِمهُ".