Surah Al-Mujadilah (The Pleading Woman), Verse 12

یٰۤاَیُّهَا الَّذِیْنَ اٰمَنُوْۤا اِذَا نَاجَیْتُمُ الرَّسُوْلَ فَقَدِّمُوْا بَیْنَ یَدَیْ نَجْوٰىكُمْ صَدَقَةً ذٰلِكَ خَیْرٌ لَّكُمْ وَاَطْهَرُ فَاِنْ لَّمْ تَجِدُوْا فَاِنَّ اللّٰهَ غَفُوْرٌ رَّحِیْمٌ ۟

Yaaa ayyuhal lazeena aamanooo izaa naajitumur Rasoola faqaddimoo baina yadai najwaakum sadaqah; zaalika khairul lakum wa athar; fa il lam tajidoo fa innal laaha ghafoorur Raheem

“O ye who believe! When ye consult the Messenger 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), Allah is Oft-Forgiving, Most Merciful.”

Quran 58:12 (Yusuf Ali Translation)