Chapter of Ta'qeeb (Prayer Supplications)
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 47
وَقَالَ هِشَامُ بْنُ سَالِمٍ لِأَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: إِنِّي أَخْرُجُ وَ أُحِبُّ أَنْ أَكُونَ مُعَقِّباً فَقَالَ «إِنْ كُنْتَ عَلَى وُضُوءٍ فَأَنْتَ مُعَقِّبٌ.
Hisham ibn Salim said to Abu Abdullah عليه السلام: "I go out and I love to be in a state of spiritual continuation (mu'aqqib)." Imam عليه السلام replied: "If you are in a state of ablution (wudhu), then you are considered to be in a state of spiritual continuation (mu'aqqib)."
- Ṣaḥīḥ al-Faqīh, p. 45