Allah commands His servants and Messengers, peace be upon them all, to eat lawful food and do righteous deeds, which indicates that eating what is lawful helps one to do righteous deeds. The Prophets, peace be upon them, did this in the most perfect manner, and did all kinds of good deeds in words, actions, guidance and advice. May Allah reward them with good on behalf of the people.

﴿كُلُواْ مِنَ الطَّيِّبَـتِ﴾

(Eat of the Tayyibat) Sa`id bin Jubayr and Ad-Dahhak said, "This means lawful. In the Sahih it says:

«وَمَا مِنْ نَبِيَ إِلَّا رَعَى الْغَنَم»

(There is no Prophet who was not a shepherd.) They asked, "And you, O Messenger of Allah'' He said,

«نَعَمْ، كُنْتُ أَرْعَاهَا عَلَى قَرَارِيَط لِأَهْلِ مَكَّة»

(Yes, I used to tend the sheep of the people of Makkah for a few Qirats.) In the Sahih, it says:

«إِنَّ دَاوُدَ عَلَيْهِ السَّلَامُ كَانَ يَأْكُلُ مِنْ كَسْبِ يَدِه»

(Dawud, upon him be peace, used to eat from the earnings of his own hand.) It was recorded in Sahih Muslim, Jami` At-Tirmidhi and Musnad Al-Imam Ahmad -- from whom this version comes -- that Abu Hurayrah, may Allah be pleased with him, said, "The Messenger of Allah said:

«يَا أَيُّهَا النَّاسُ إِنَّ اللهَ طَيِّبٌ لَا يَقْبَلُ إِلَّا طَيِّبًا، وَإِنَّ اللهَ أَمَرَ الْمُؤْمِنِينَ بِمَا أَمَرَ بِهِ الْمُرْسَلِين»

(O people, Allah is Tayyib and only accepts that which is Tayyib, and Allah commands the believers as He had commanded the Messengers by saying:

﴿يأَيُّهَا الرُّسُلُ كُلُواْ مِنَ الطَّيِّبَـتِ وَاعْمَلُواْ صَـلِحاً إِنِّى بِمَا تَعْمَلُونَ عَلِيمٌ ﴾

(O Messengers! Eat of the Tayyibat and do righteous deeds. Verily, I am Well-Acquainted with what you do.) ﴿23:51﴾ and

﴿يـأَيُّهَا الَّذِينَ ءَامَنُواْ كُلُواْ مِن طَيِّبَاتِ مَا رَزَقْنَـكُمْ﴾

(O you who believe! Eat of the Tayyibat that We have provided you with)﴿2:172﴾.) Then he mentioned how a man may travel on a long journey, dusty and unkempt,

«وَمَطْعَمُهُ حَرَامٌ، وَمَشْرَبُهُ حَرَامٌ، وَمَلْبَسُهُ حَرَامٌ، وَغُذِّيَ بِالْحَرَامِ يَمُدُّ يَدَيْهِ إِلَى السَّمَاءِ: يَا رَبِّ يَا رَبِّ فَأَنَّى يُسْتَجَابُ لِذَلِك»

(and his food, drink and clothing are unlawful, and he has nourished himself with what is unlawful, and he extends his hands towards the sky, saying, `O Lord, O Lord!' -- how can his prayer be answered.) At-Tirmidhi said that it is "Hasan Gharib.''