وَكَأَيِّن مِّن دَآبَّةٍ لَّا تَحْمِلُ رِزْقَهَا ٱللَّهُ يَرْزُقُهَا وَإِيَّاكُمْ
"How many a creature there is that cannot carry its own provision; God provides for it and for you."
لَّا تَحْمِلُ رِزْقَهَا — "does not carry its provision". The lexicographers explain this in two ways: it cannot store up its food and carry it with it, or it has not the strength to secure its provision. I transmit both explanations.
The verse's link with the preceding verses is worth recording: in verse 56 migration had been commanded. The most concrete obstacle to migration is anxiety about livelihood — and this verse is placed exactly there.
I record this as my own reading; its ground is the order of the verses: the proof is brought not from the human being but from the animal. That is, by saying that a creature which cannot carry its own load is fed as well, it is shown that storing up provisions is not a condition.
And at al-Baqara 2/197 (wa tazawwadū fa-inna khayra'z-zādi't-taqwā) it was treated how setting out without provisions was done away with. The two verses do not contradict: one commands the precaution, the other says that the precaution does not underwrite the outcome. I set this down as a note.