It is narrated from Sayyiduna Abu Juhayfah (may Allah be pleased with him) that he said: I ate tharid made of wheat bread with fatty meat, then I came to the Prophet (peace and blessings be upon him) and began to belch. He (peace and blessings be upon him) said: "What is this?! Hold back your belching, for those who eat their fill the most in this world will be the hungriest in the Hereafter." This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Ja'dah (may Allah be pleased with him) that he saw the Prophet (peace and blessings be upon him), upon seeing a man with a fat belly, point with his hand towards his belly and say: "If only this (fat or flesh on the belly) were somewhere other than here (that is, spent in toil in the path of Allah), it would have been better for him." This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Use olive oil as a condiment (with your food) and apply it (to your bodies), for it comes from a blessed tree." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that a bowl containing milk and honey (mixed together) was brought to the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) said: "Two condiments in one vessel?! I will not eat it, nor do I declare it unlawful." This hadith has an authentic (sahih) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.

It is narrated from Sayyiduna Fadalah bin Ubayd (may Allah be pleased with him) that he heard the Prophet (peace and blessings be upon him) saying: "Successful is the one who was guided to Islam, whose livelihood is just sufficient for his needs (kafaf), and who is content with it." This hadith has an authentic (sahih) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.