Before drinking Zam Zam Water

Recite:

اللَّهُمَّ إِنِّي أَسْأَلُكَ عِلْمَاً نَافِعَاًً وَرِزْقَاً وَاسِعَاًَ وَشِفَاءً مِنْ كُلِّ دَاءٍ

"O Allah, I seek beneficial knowledge, wide sustenance and cure from all ailments from You".(Hisnul Hasin)