BAYHAQI 2003:
from Sālim b. ʿAbdullāh from his father —
[Machine] The Messenger of Allah (Peace be upon him) said, "Indeed, Bilal calls for the prayer at night, so continue eating and drinking until Ibn Umm Maktum calls for the prayer." Ibn Shihab said, "Ibn Umm Maktum was a blind man who did not call for the prayer until it was said to him, 'You have become morning, you have become morning.'"
البيهقي ٢٠٠٣:
عن سالم بن عبد الله عن أبيه —
أَنَّ رَسُولَ اللهِ ﷺ قَالَ إِنَّ بِلَالًا يُنَادِي بِلَيْلٍ فَكُلُوا وَاشْرَبُوا حَتَّى يُنَادِيَ ابْنُ أُمِّ مَكْتُومٍ قَالَ ابْنُ شِهَابٍ وَكَانَ ابْنُ أُمِّ مَكْتُومٍ رَجُلًا أَعْمَى لَا يُنَادِي حَتَّى يُقَالُ لَهُ أَصْبَحْتَ أَصْبَحْتَ
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