Al-Abbas asked the Prophet (ﷺ) about paying the sadaqah (his zakat) in advance before it became due, and he gave permission to do that.

Abu Dawud said: This tradition has also been transmitted by Hushaim through a different chain of narrators. The version of Hushaim is more sound.

Ziyad, or some other governor, sent Imran ibn Husayn to collect sadaqah (i.e. zakat). When he returned, he asked Imran: Where is the property? He replied: Did you send me to bring the property? We collected it from where we used to collect in the lifetime of the Messenger of Allah (ﷺ), and we spent it where we used to spend during the time of the Messenger of Allah (ﷺ).