Ar-Rāziq - Ar-Razzāq
The Sustainer - The All-Sustainer
The Sustainer is the One Who guarantees the sustenance for all those in the heavens and earth, be they pious or wicked, and then He gives special sustenance for His close servants, increasing them in faith and wisdom and growing their bodies through lawful earning. Allah’s name ‘the Sustainer’ occurs 5 times in the Qur’an.

For example:
(And provide for us, and You are the best of providers.) (Sūrat Al-Mā’idah: 114) And (But when they saw a transaction or a diversion, they rushed to it and left you standing. Say, “What is with Allah is better than diversion and than a transaction, and Allah is the best of providers.”) (Sūrat Al-Jumu‘ah: 11)

The All-Sustainer is a name that denotes the abundance of the sustenance He gives His servants. He provides for them before they ask for it, and even provides for them while they disobey Him. This great name, The All-Sustainer, occurs only once in the Qur’an in the verse that says, (Surely Allah is The All-Sustainer, the Owner of Power, the Strong.) (Sūrat AlDhāriyāt: 58)

In light of these two great names, I would say:
1. When a person knows these two names, he feels love for His Generous Lord. If a disbeliever lives on the provision of Allah, then what about the believer! Allah Almighty says,(And there is no creature on earth but upon Allah is its provision.) (Sūrat Hūd: 6)
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The Prophet (may Allah’s peace and blessings be upon him) said, “No one is more patient over a hurtful thing he has heard than Allah: They falsely attribute a son to Him, and then He gives them safety and sustenance.”55

2. Be certain that sustenance lies in the hands of Allah Almighty. No created being can, independently, bring sustenance to anyone or keep it away from anyone. This gives us relief and reassurance. (Whatever mercy Allah accords to people, none can withhold; and whatever He withholds, no other will be able to release after Him. He is All-Mighty, All-Wise.) (Sūrat Fātir: 2)

Out of their ignorance, the hypocrites during the Prophet’s time called for a dirty economic war against him and his Companions unaware that sustenance is in the hands of Allah Almighty. (It is they who say, “Give nothing to those who are with the Messenger of Allah so that they may disperse.” And the treasures of the heavens and earth belong to Allah. But the hypocrites do not understand.) (Sūrat AlMunāfiqūn: 7)

3. Know and bear in mind that the provision of Allah Almighty is too broad to be limited to only food and drink.
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55 Narrated by Al-Bukhāri and Muslim)
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Rather, it is everything good, material or moral, worldly or otherworldly, that your Lord bestows upon you. The Prophet (may Allah’s peace and blessings be upon him) spoke to ‘Ā’ishah about Khadījah, saying, “Her love was given to me as a provision (from Allah).”56

If people are mindless to this broad meaning of provision, then some may think that they suffer deprivation, given that they have little wealth, even though Allah has given them good health, success and love among people.

4. The best means whereby a person can seek sustenance and blessings is belief in Allah Almighty and fearing Him. In the Qur’an, He says, (Had the people of those towns believed and been God-fearing, We would have certainly opened up to them blessings from the heavens and earth; but they denied (their prophets), so We seized them for their deeds.) (Sūrat Al-A‘rāf: 96)

He also says, (And whoever fears Allah - He will make for him a way out, and will provide for him from where he does not expect.) (Sūrat Al-Talāq: 2-3)
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56 Narrated by Muslim)
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