Sahih al-Bukhari, Hadith 2678 ⓘ

Narrated Talha bin 'Ubaidullah: A man came to Allah's Messenger asking him about Islam, Allah's Messenger said, "You have to offer five compulsory prayers in a day and a night (24 hours)." The man asked, "Is there any more compulsory prayers for me?" Allah's Messenger said, "No, unless you like to offer Nawafil (i.e. optional prayers)." Allah's Messenger then added, "You have to observe fasts during the month of Ramadan." The man said, "Am I to fast any other days?' Allah's Messenger said, "No, unless you wish to observe the optional fast voluntarily." Then Allah's Messenger told him about the compulsory Zakat. The man asked, "Do I have to give anything besides?" Allah's Messenger said, "No, unless you wish to give in charity voluntarily." So, the man departed saying, "By Allah I will neither do more nor less than that." Allah's Messenger said, "If he has said the truth he will be successful."

حَدَّثَنَا إِسْمَاعِيلُ بْنُ عَبْدِ اللَّهِ، قَالَ حَدَّثَنِي مَالِكٌ، عَنْ عَمِّهِ أَبِي سُهَيْلٍ، عَنْ أَبِيهِ، أَنَّهُ سَمِعَ طَلْحَةَ بْنَ عُبَيْدِ اللَّهِ، يَقُولُ جَاءَ رَجُلٌ إِلَى رَسُولِ اللَّهِ صلى الله عليه وسلم فَإِذَا هُوَ يَسْأَلُهُ عَنِ الإِسْلاَمِ، فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ خَمْسُ صَلَوَاتٍ فِي الْيَوْمِ وَاللَّيْلَةِ ‏"‏‏.‏ فَقَالَ هَلْ عَلَىَّ غَيْرُهَا قَالَ ‏"‏ لاَ، إِلاَّ أَنْ تَطَّوَّعَ ‏"‏‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ وَصِيَامُ رَمَضَانَ ‏"‏‏.‏ قَالَ هَلْ عَلَىَّ غَيْرُهُ قَالَ ‏"‏ لاَ، إِلاَّ أَنْ تَطَّوَّعَ ‏"‏‏.‏ قَالَ وَذَكَرَ لَهُ رَسُولُ اللَّهِ صلى الله عليه وسلم الزَّكَاةَ‏.‏ قَالَ هَلْ عَلَىَّ غَيْرُهَا قَالَ ‏"‏ لاَ، إِلاَّ أَنْ تَطَّوَّعَ ‏"‏‏.‏ فَأَدْبَرَ الرَّجُلُ وَهْوَ يَقُولُ وَاللَّهِ لاَ أَزِيدُ عَلَى هَذَا وَلاَ أَنْقُصُ‏.‏ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ أَفْلَحَ إِنْ صَدَقَ ‏"‏‏.‏