SHAFAQNA – It is narrated from the Prophet of Islam (PBUH) who said: Whoever plants a tree in a land, or dig a water canal which no one else has done previously (in the same place), or revives an arid land; according to the command of God and the Prophet (PBUH), that land belongs to the same person who revives it [1].
[1] Al-Kafi, Vol. 5, Page 280.