O ye who believe! When ye consult the Apostle in private, spend something in charity before your private consultation. That will be best for you, and most conducive to purity (of conduct). But if ye find not (the wherewithal), God is Oft-Forgiving, Most Merciful. (58:12)

Is it that ye are afraid of spending sums in charity before your private consultation (with him)? If, then, ye do not so, and God forgives you, then (at least) establish regular prayer; practise regular charity; and obey God and His Apostle. And God is well-acquainted with all that ye do. (58:13)