Musnad Ahmad 30:2713

Hajjaj narrated to us, he said: Ibn Abi Dhi'b informed us, from Sa'id al-Maqburi, from Sa'id ibn Yasar, from Abu Hurairah, from the Prophet, peace and blessings of Allah be upon him, that he said: "No Muslim man makes the mosques his home for prayer and remembrance, except that Allah rejoices at him when he leaves his house, just as the family of the absent one rejoices at their absent one when he arrives to them."