Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Zaid bin Thabit (may Allah be pleased with him) that the Noble Prophet (peace and blessings of Allah be upon him) said: "Whoever's worry and grief is only about the world, Allah the Exalted scatters his affairs, places poverty and neediness before his eyes, and he receives from the world only that which has been decreed for him. (But on the contrary) whoever's concern is for the Hereafter, Allah the Exalted brings his affairs together, enriches his heart, and the world comes to him humbled (according to what is decreed for him)."