Please see this old post:
From Dhammandando Bhikkhu:
the commentary to the Dakkhi.naavibhanga Sutta (MN. 142); this is one of the suttas in which these persons are described as potential recipients of offerings.
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The commentator then asks if it is possible to give a gift to a maggasamangii, considering that such a ‘person’ only exists for a single mind-moment. He answers that it is and gives the example of an aaraddhavipassaka bhikkhu who goes to a layman’s house for almsfood, the people there take his almsbowl from him and then emergence of the path ( magga-vu.t.thaana) occurs in him at the same moment that they are putting food in his bowl. There are a few other examples given, but they are essentially the same, differing only in the manner in which the food is given.
I think the scholars who doubt such matters are forgetting that in reality there are only momentary elements- no people at all in the truest sense.