What falls under sustenance (rizq)? Does it include money earned and what our relatives give us?

"Al-Razzaq" (The Provider) is one of Allah's Beautiful Names. He is the One who has guaranteed provision and sustains every soul with the sustenance that sustains it. Everything that reaches a servant – whether it be wealth, children, knowledge, or health – is from Allah's provision, whether it is lawful (halal) or unlawful (haram), and regardless of how it reached them. Provision may mean what Allah has permitted for the servant and granted them possession of, or what the servant nourishes themselves with. Unlawful provision is something that Allah has decreed, known, and written, and it is under His will and creation; nevertheless, He has forbidden it and prohibited it.