Hawzah News Agency – Imam Hussain peace be upon him says:

مَن سَرَّهُ أن يُنسَأ في أجَلِهِ، ويُزادَ في رِزقِهِ، فَلْيَصِلْ رَحِمَهُ.

'Whoever would like an increase in his lifespan and in his sustenance should maintain relations with his kin.'

Source: Bihar al-Anwar, v. 74, p. 91, no. 15