What is the ruling on the a giver using items he donated to the mosque?

Waqf (endowment) and donations are disbursed according to the conditions set by the endower or donor. The endower may benefit from their general waqf like any other Muslim, unless otherwise stipulated. Uthman bought the well of Rumah and made his bucket like the buckets of the Muslims. And whoever donates bottles of water or perfumes to the mosque, they may benefit from them like any other worshipper.