حَدَّثَنَا يَحْيَى عَنِ التَّيْمِيِّ عَنْ أَبِي عُثْمَانَ عَنِ ابْنِ مَسْعُودٍ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ لَا يَمْنَعَنَّ أَحَدَكُمْ أَذَانُ بِلَالٍ عَنْ سَحُورِهِ فَإِنَّهُ يُؤَذِّنُ أَوْ قَالَ يُنَادِي لِيَرْجِعَ قَائِمُكُمْ وَيَنْتَبِهَ نَائِمُكُمْ لَيْسَ أَنْ يَقُولَ هَكَذَا وَضَمَّ يَدَهُ وَرَفَعَهَا وَلَكِنْ حَتَّى يَقُولَ هَكَذَا وَفَرَّقَ يَحْيَى بَيْنَ السَّبَّابَتَيْنِ قَالَ أَبُو عَبْد الرَّحْمَنِ هَذَا الْحَدِيثُ لَمْ أَسْمَعْهُ مِنْ أَحَدٍ
مسند امام احمد بن حنبل · Hadith 3654
It was narrated that Ibn Mas'ood (RA) said: The Messenger of Allah (PBUH) said: "None of you should let the adhan of Bilal keep him from his sahoor, because he gives the adhan so that those of you who are praying cjiyam may go back (to rest), and those of you who are asleep should wake up. It is not when it is like this"- and he put his fingers together and raised (his hand - to indicate vertical) - "rather it is until it is like this"- and Yahya spread his forefingers apart (to indicate horizontal).
Sanad
حَدَّثَنَا يَحْيَى عَنِ التَّيْمِيِّ عَنْ أَبِي عُثْمَانَ عَنِ ابْنِ مَسْعُودٍ