Allah says,

[قَدْ أَفْلَحَ مَن تَزَكَّى ]

(Indeed whosoever purifies himself shall achieve success.) meaning, he purifies himself from despised characteristics and he follows what Allah has revealed to the Messenger .

[وَذَكَرَ اسْمَ رَبِّهِ فَصَلَّى ]

(And remembers the Name of his Lord, and performs Salah.) meaning, he establishes the prayer in its appointed time, seeking the pleasure of Allah, obedience to His command, and implementation of His Law. We have already reported from the Commander of the believers, `Umar bin `Abdul-`Aziz, that he used to command the people to give the Sadaqat Al-Fitr, and he would recite this Ayah:

[قَدْ أَفْلَحَ مَن تَزَكَّى - وَذَكَرَ اسْمَ رَبِّهِ فَصَلَّى ]

(Indeed whosoever purifies himself shall achieve success. And remembers the Name of his Lord, and performs Salah.) Abu Al-Ahwas said, "If someone comes to any of you begging, and he wants to pray, then he should give charity (Zakah) before he prays. For verily, Allah the Exalted says,

[قَدْ أَفْلَحَ مَن تَزَكَّى - وَذَكَرَ اسْمَ رَبِّهِ فَصَلَّى ]

(Indeed whosoever purifies himself shall achieve success. And remembers the Name of his Lord, and performs Salah.)'' Qatadah said concerning this Ayah,

[قَدْ أَفْلَحَ مَن تَزَكَّى - وَذَكَرَ اسْمَ رَبِّهِ فَصَلَّى ]

(Indeed whosoever purifies himself shall achieve success. And remembers the Name of his Lord, and performs Salah (Fasalla).) "He purifies his wealth and pleases his Creator.''