Does one who is in the mosque, then leaves, and returns to the mosque, pray the greeting of the mosque?

Question:
He says: If I enter the mosque at a time other than prayer, and I pray the greeting of the mosque, then I leave for a need or without a need, and I return, is it obligatory for me to repeat the greeting of the mosque?

Answer:
If you left with the intention of returning for a need or for wudu' (ablution) with the intention of returning, do not repeat the greeting of the mosque; the first one is sufficient because you are in the status of one sitting in the mosque. But if you left without intending to return, yet you happen to return, then you perform the greeting of the mosque a second time, because this is an independent entry from the first.