بسم الله الرحمن الرحيم
(Fatwa: 1034/979/M=9/1439)
The land which your elder brother has gifted to your sick brother, if he has given it into his complete possession, and that land is more than his need and it is equal to nisab then your sick brother is not eligible to receive zakah thus it is not lawful to give him zakah, or wajib sadaqah or interest amount, yes you may give him nafl sadaqah.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
