Certitude is sufficient as worship.

Certitude is sufficient as worship. 24ـ كَفى بِاليَقينِ عِبادَةً. The certitude of one who is extravagant in his wants and exerts himself in acquisition [of wealth] it is not true. 25ـ لَمْ يَصْدُقْ يَقينُ مَنْ أسْرَفَ فِي الطَّلَبِ، وأجْهَدَ نَفْسَهُ فيِ المُكْتَسَبِ. If your certitude was sound, you would not have exchanged the everlasting for the evanescent, nor would you have traded the lofty for the lowly.

26ـ لَوْ صَحَّ يَقينُكَ لَمَا اسْتَبْدَلْتَ الفانِيَ بِالباقِى، ولابِعْتَ السَّنِيَّ بِالدَّنيِّ. One who has certitude is successful. 27ـ مَنْ أيْقَنَ أفْلَحَ. One who has certitude is saved. 28ـ مَنْ أيْقَنَ يَنْجُ. One whose certitude is firm, has hope. 29ـ مَنْ حَسُنَ يَقينُهُ يَرْجُ. One who has certitude works diligently. 30ـ مَنْ يَسْتَيْقِنْ يَعْمَلْ جاهِداً. One who is certain about [divine] reward does good [deeds]. 31ـ مَنْ أيْقَنَ بِالجَزاءِ أحْسَنَ.

One whose certitude is strong does not [have any] doubt. 32ـ مَنْ قَوِيَ يَقينُهُ لَمْ يَرْتَبْ. One who is certain about the Hereafter does not covet this world. 33ـ مَنْ أيْقَنَ بِالآخِرَةِ لَمْ يَحْرِصْ عَلَى الدُّنْيا. One whose conviction is firm, his worship becomes good. 34ـ مَنْ حَسُنَ يَقينُهُ حَسُنَتْ عِبادَتُهُ. One whose certitude is true does not [have any] doubt. 35ـ مَنْ صَدَقَ يَقينُهُ لَمْ يَرْتَبْ. One whose certitude is sound abstains from dispute.

36 ـ مَنْ صَحَّ يَقينُهُ زَهِدَ فِي المِراءِ. One whose heart does not have certitude, his actions do not submit to it. 37ـ مَنْ لَمْ يُوقِنْ قَلْبُهُ لَمْ يُطِعْهُ عََمَلُهُ. One who has certitude is hopeful. 38ـ مَنْ أيْقَنَ رَجا. How great is the felicity of one whose heart is filled with the coolness of certitude. 39ـ ما أعْظَمَ سَعادَةَ مَنْ بُوشِرَ قَلْبُهُ بِبَرْدِ اليَقينِ. Certitude is an excellent dispeller of doubt. 40ـ نِعْمَ الطّارِدُ لِلشَّكِّ اَلْيَقينُ.

Sleeping with certitude is better than praying while in doubt. 41ـ نَوْمٌ عَلى يَقين خَيْرٌ مِنْ صَلاة في شَكّ. One who sells certitude for doubt, truth for falsehood, and the Hereafter for this world is destroyed. 42ـ هَلَكَ مَنْ باعَ اليَقينَ بِالشَّكِّ، والحَقَّ بالباطِلِ، والآجِلَ بِالعاجِلِ. Do not turn your certitude into doubt and your knowledge into ignorance. 43ـ لاتَجْعَلُوا يَقينَـكُمْ شَكّاً، ولا عِلْمَكُمْ جَهْلاً. He who has no certitude has no faith.