عَنْ أُبَيِّ بْنِ كَعْبٍ رَضِيَ اللَّهُ عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: ((يَا بِلَالُ! اجْعَلْ بَيْنَ أَذَانِكَ وَإِقَامَتِكَ نَفَسًا يَفْرُغُ الْأَكِلُ مِنْ طَعَامِهِ فِي مَهْلٍ وَيَقْضِي الْمُتَوَضِّئُ حَاجَتَهُ فِي مَهْلٍ))
It is narrated from Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Bilal! Make such an interval between your adhan and iqamah that the one who is eating can easily finish his food, and the one who is performing ablution can comfortably fulfill his need."