ʿUyūn akhbār al-Riḍā - Volume 1 > Various Traditions From al-Ridha (s)
Hadith #18

18 - حَدَّثَنا مُحَمَّدِ بْنِ الحَسَن بْنِ أَحْمَدِ بْنِ الوَلِيد رَضِىَ اللهُ عَنْهُ قالَ: حَدَّثَنا مُحَمَّدِ بْنِ الحَسَن الصَفَّار، عَن أَحْمَدِ بْنِ مُحَمَّدِ بْنِ عِيسَى، عَن مُحَمَّدِ بْنِ إِسْمَاعِيل بْنِ بزيع قالَ: رَأَيْت أَبَا الحَسَن‏ عَلَيْهِ السَّلامُ إِذَا سَجَدَ يُحَرِّكُ ثَلاثَ أَصَابِعَ مِنْ أَصَابِعِهِ وَاحِدَةً بَعْدَ وَاحِدَةٍ تَحْرِيكاً خَفِيفاً كَأَنَّهُ يَعُدُّ التَّسْبِيحَ ثُمَّ يَرْفَعُ رَأْسَهُ قَالَ وَرَأَيْتُهُ يَرْكَعُ رُكُوعاً أَخْفَضَ مِنْ رُكُوعِ كُلِّ مَنْ رَأَيْتُهُ رَكَعَ كَانَ إِذَا رَكَعَ جَنَّحَ بِيَدَيْهِ.

30-18 Muhammad ibn Al-Hassan ibn Ahmad ibn al-Waleed - may God be pleased with him - narrated that Muhammad ibn Al-Hassan al-Saffar quoted on the authority of Ahmad ibn Muhammad ibn Isa, on the authority of Muhammad ibn Isma’il ibn Bazee’, “I saw Abul Hassan Al-Ridha (s) when he was prostrating in prayer. He (s) slowly moved one of three fingers one after the other as if he was counting the number of glorifications recited. Then he raised his head. I also saw him bowing down in prayer. The duration of his bowing down was shorter than that of anyone else I had ever seen before. He also kept his two hands a little way away from his body while bowing down.”