ʿUyūn akhbār al-Riḍā - Volume 1 > Various Traditions From al-Ridha (s)
Hadith #15

15 - حَدَّثَنا أَبي رَضِىَ اللهُ عَنْهُ قالَ: حَدَّثَنا سَعْد بْنُ عَبْدِ اللَّهِ، عَن أَحمَدِ بنِ مُحَمَّدِ بْنِ عِيسَى، عَنِ الحَسَن بنِ عَلِيِّ الوَشَّاءِ قالَ: سَمِعْتُ الرِّضا عَلَيْهِ السَّلامُ يَقُولُ: أَقرَبُ ما يَكُونُ العَبْدُ مِنَ اللَّه عَزَّ وَجَلَّ وَهُوَساجِدٌ، وَذلِكَ قَوْلَهُ تَبارَكَ وَتَعالى‏ (وَاسْجُدْ وَاقْتَرِبْ).

30-15 (The author of the book narrated) my father - may God be pleased with him - narrated that Sa’d ibn Abdullah quoted on the authority of Ahmad ibn Muhammad ibn Isa, on the authority of Al-Hassan ibn Ali al-Washsha’, “I heard Al-Ridha (s) say, ‘The state in which a servant (i.e. a person) is closest to the Honorable the Exalted God is when he is prostrating. This is what the Blessed the Sublime God said, ‘…But bow down in adoration, and bring thyself the closer (to God)! ’”