ABUDAWUD 1489:
from Tushīr Biʾuṣbuʿ Wāḥidah Wa-al-Āibtihāl —
Ikrimah quoted Ibn Abbas as saying: When asking for something you should raise your hands opposite to your shoulders; when asking for forgiveness you should point with one finger; and when making an earnest supplication you should spread out both your hands.
أبو داود ١٤٨٩:
عن تشير بءصبع واحده و-الابتهال —
أَنْ تَرْفَعَ يَدَيْكَ حَذْوَ مَنْكِبَيْكَ أَوْ نَحْوَهُمَا وَالاِسْتِغْفَارُ أَنْ تُشِيرَ بِأُصْبُعٍ وَاحِدَةٍ وَالاِبْتِهَالُ أَنْ تَمُدَّ يَدَيْكَ جَمِيعًا
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