TABARANI 18526:
from Asmāʾ b. Wāthilah b. al-Asqaʿ —
[Machine] My father used to sit facing the qibla and wouldn't speak until the sun rose after he prayed Fajr. Sometimes I would speak to him about a need, but he wouldn't respond. So, I asked him, "What is this?" He said, "I heard the Messenger of Allah ﷺ say, 'Whoever prays Fajr and then recites 'Say: He is Allah, the One' one hundred times before speaking, every time he recites it, one year's worth of sins will be forgiven for him.'"
الطبراني ١٨٥٢٦:
عن اسماء بن واثله بن الاسقع —
كَانَ أَبِي إِذَا صَلَّى الصُّبْحَ جَلَسَ مُسْتَقْبِلَ الْقِبْلَةِ لَا يَتَكَلَّمُ حَتَّى تَطْلُعَ الشَّمْسُ فَرُبَّمَا كَلَّمْتُهُ فِي الْحَاجَةِ فَلَا يُكَلِّمُنِي فَقُلْتُ مَا هَذَا؟ قَالَ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «مَنْ صَلَّى الصُّبْحَ ثُمَّ قَرَأَ قُلْ هُوَ اللهُ أَحَدٌ مِائَةَ مَرَّةً قَبْلَ أَنْ يَتَكَلَّمَ فَكُلَّمَا قَرَأَ قُلْ هُوَ اللهُ أَحَدٌ غُفِرَ لَهُ ذَنْبُ سَنَةٍ»
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