الحَثُّ عَلَى الصِّيامِ تَطَوُّعا Enjoinment of Fasting of One’s Own Accord

14ـ رسولُ اللهِ‏ِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ): مَن صامَ يَوماً تَطَوُّعاً فلو اُعطِيَ مِل‏ءَ الأرضِ ذَهَباً ماوَفّى أجرَهُ دُونَ يَومِ الحِسابِ .

14– The Prophet (SAWA) said, ‘He who fasts a single day of his own accord is rewarded to such an extent that even if he was to be given the whole world’s worth of gold for it, the reward he deserves would not be fulfilled until the Day of Resurrection.’[Ma`ani al-Akhbar, p. 409, no. 91]
 

15ـ رسولُ اللهِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ): مَن صامَ يَوماً تَطَوُّعاً ابتِغاءَ ثَوابِ اللّه‏ِ وَجَبَت لَهُ المَغفِرَةُ .

15– The Prophet (SAWA) said, ‘He who fasts a single day of his own accord, wishing to procure the reward of Allah, [Allah makes] his forgiveness mandatory.’[Amali al-Saduq, p. 443, no. 2]
 

16ـ رسولُ اللهِ (صَلَّيَ اللهُ عَلَيهِ وَ آلِهِ): مَن صامَ ثلاثةَ أيّامٍ مِن كُلِّ شَهرٍ كانَ كَمَن صامَ الدَّهرَ كلّه؛ لأنَّ اللّه‏َ عَزَّوجلَّ يقولُ: «مَنْ جاءَ بالحَسَنَةِ فلَهُ عَشْرُ أمْثالِها».

16– The Prophet (SAWA) said, ‘Whoever [voluntarily] fasts three days every month is considered as having fasted his whole life, for verily Allah, Mighty and Exalted, says, “Whoever brings virtue shall receive ten times its like” [Qur’an 6:160].[ Da`aim al-Islam, v. 1, p. 283]
 

17ـ الإمامُ الصّادقُ (عَلَيهِ الّسَلامُ): إنَّ الرَّجُلَ لَيَصُومُ يَوماً تَطَوُّعاً يُرِيدُ بهِ ما عِندَ اللّه‏ِ عَزَّوجلَّ فَيُدخِلُهُ اللّه‏ُ بهِ الجَنَّةَ.

17– Imam al-Sadiq (AS) said, ‘Verily when a man fasts a single day of his own accord, desiring thereby what is with Allah, Mighty and Exalted, Allah gives him entrance into Paradise because of it.’[al-Kafi, v. 4, p. 63, no. 5]