قَالَ النَّبِيُّ ( صلى الله عليه وآله ) إِنَّ لِلْقُلُوبِ إِقْبَالًا وَ إِدْبَاراً فَإِذَا أَقْبَلَتْ فَتَنَفَّلُوا وَ إِذَا أَدْبَرَتْ فَعَلَيْكُمْ بِالْفَرِيضَةِ .
Translation
And from him, from Ali Bin Ma’bad, or someone else, (It has been narrated) from one of the two (5<sup>th</sup> or 6<sup>th</sup> Imam<sup>asws</sup> having said: ‘The Prophet<sup>saww</sup> said: ‘For the hearts there is a welcoming and a turning back. So whenever it welcomes, so you tend to pray optional (Salāt), and when it turns back, so upon you is with the Obligatory (<span class="iTxt">Salāts</span>)’.
Compiled by Shaykh Muhammad ibn Ya'qub al-Kulayni
Source
License: Free for educational and research use (Thaqalayn Data API)
Provided for research and educational purposes. Original source: Thaqalayn Project. Open License.