 أَبِي رَحِمَهُ اَللَّهُ قَالَ حَدَّثَنَا عَبْدُ اَللَّهِ بْنُ جَعْفَرٍ اَلْحِمْيَرِيُّ عَنْ مَسْعَدَةَ بْنِ صَدَقَهَ عَنِ اَلصَّادِقِ ع أَنَّهُ قِيلَ لَهُ مَا بَالُ اَلْمُؤْمِنِ أَحَدُّ شَيْ‌ءٍ قَالَ ع لِأَنَّ عِزَّ اَلْقُرْآنِ فِي قَلْبِهِ وَ مَحْضَ اَلْإِيمَانِ فِي قَلْبِهِ وَ هُوَ يَعْبُدُ اَللَّهَ عَزَّ وَ جَلَّ مُطِيعٌ لِلَّهِ وَ لِرَسُولِهِ ع زائدة مُصَدِّقٌ قِيلَ فَمَا بَالُ اَلْمُؤْمِنِ قَدْ يَكُونُ أَشَحَّ شَيْ‌ءٍ قَالَ لِأَنَّهُ يَكْسِبُ اَلرِّزْقَ مِنْ حِلِّهِ وَ مَطْلَبُ اَلْحَلاَلِ عَزِيزٌ فَلاَ يُحِبُّ أَنْ يُفَارِقَهُ لِشِدَّةِ مَا يَعْلَمُ مِنْ عُسْرِ مَطْلَبِهِ وَ إِنْ سَخَتْ نَفْسُهُ لَمْ يَضَعْهُ إِلاَّ فِي مَوْضِعِهِ قِيلَ مَا عَلاَمَاتُ اَلْمُؤْمِنِ قَالَ ع أَرْبَعَةٌ نَوْمُهُ كَنَوْمِ اَلْغَرْقَى وَ أَكْلُهُ كَأَكْلِ اَلْمَرْضَى وَ بُكَاؤُهُ كَبُكَاءِ اَلثَّكْلَى وَ قُعُودُهُ كَقُعُودِ المواثب اَلْوَاثِبِ قِيلَ لَهُ فَمَا بَالُ اَلْمُؤْمِنِ قَدْ يَكُونُ أَنْكَحَ شَيْ‌ءٍ قَالَ ع لِحِفْظِهِ فَرْجَهُ عَنْ فُرُوجِ مَا لاَ يَحِلُّ لَهُ وَ لِكَيْ لاَ تَمِيلَ بِهِ شَهْوَتُهُ هَكَذَا وَ لاَ هَكَذَا وَ إِذَا ظَفِرَ بِالْحَلاَلِ‌ اِكْتَفَى بِهِ وَ اِسْتَغْنَى بِهِ عَنْ غَيْرِهِ وَ قَالَ‌ ص إِنَّ فِي اَلْمُؤْمِنِ ثَلاَثَ خِصَالٍ لَمْ تَجْتَمِعْ إِلاَّ فِيهِ عِلْمُهُ بِاللَّهِ عَزَّ وَ جَلَّ وَ عِلْمُهُ بِمَنْ يُحِبُّ وَ عِلْمُهُ بِمَنْ يُبْغِضُ وَ قَالَ ع إِنَّ قُوَّةَ اَلْمُؤْمِنِ فِي قَلْبِهِ أَ لاَ تَرَوْنَ أَنَّكُمْ تَجِدُونَهُ ضَعِيفَ اَلْبَدَنِ نَحِيفَ اَلْجِسْمِ وَ هُوَ يَقُومُ اَللَّيْلَ وَ يَصُومُ اَلنَّهَارَ وَ قَالَ ع اَلْمُؤْمِنُ فِي دِينِهِ أَشَدُّ مِنَ اَلْجِبَالِ اَلرَّاسِيَةِ وَ ذَلِكَ لِأَنَّ اَلْجَبَلَ قَدْ يُنْحَتُ مِنْهُ وَ اَلْمُؤْمِنَ لاَ يَقْدِرُ أَحَدٌ أَنْ يَنْحَتَ مِنْ دِينِهِ شَيْئاً وَ ذَلِكَ لِضَنِّهِ بِدِينِهِ وَ شُحِّهِ عَلَيْهِ .
 My father, Allah may have mercy upon him, narrated to us from Abdullah bin Ja’far al-Himyari from Harun bin Muslim from Mas’ada bin Sadaqa: As he was asked about the clear resoluteness that is seen in the manners of the believers, Abu Abdullah  answered: This is because of the existence of the glory of the Quran in the believers’ hearts and the existence of the purity of faith in their chests. They worship Allah, Powerful and Majestic is He, obey Him, and believe the Messenger of Allah. They asked: What about the stinginess that is noticed in the believers’ manners? He  answered: This is because the believers seek only legal earnings. To seek legal earnings is something very hard; therefore, the believers dislike to forsake the things that they exerted all efforts painstakingly to obtain. When they are generous, they spend so properly. They asked: What are the characters of the believers? He  answered: The believers sleep like the drowned, eat like the ailed, weep like the mother that is bereaved of her child, and sit like the one against whom people are rallied. They asked: Why are the believers more importunate than others are in the question of marriage? He  answered: This is because the believers restrain their carnal desires and do not violate the others’ honors. Besides, they do so in order that their sexual drives will not lead them astray. If a believer gains the legal, he satisfies himself with it and dispends with anything else. • Imam as-Sadiq  also said: Only the believers enjoy three characters altogether: the knowledge of Allah, knowledge of those whom they like, and knowledge of those whom they dislike. • He  also said: A believer’s power lies in his heart; therefore, he stays up at nights (for worship) and observes fasting during days while his body is weak and thin. • He  also said: With regard to his religion, the believer is firmer than the unshakable mountains. One can take from the unshakable mountains, while no one can take anything from the beliefs of the believers, for they are so observant and abiding by his religion.