Is "Allahumma barik lana fima razaqtana wa qina azab an-nar" considered one of the legitimate supplications before eating?

The hadith to which the questioner referred was mentioned by Al-Nawawi in his book "Al-Adhkar" under the section of the remembrance recited before eating, even though it contains some weakness. In "Fayd al-Qadir" by Al-Munawi, concerning the hadith: "When one of you eats food, let him say: 'O Allah, bless it for us and give us something better than it.' And when he drinks milk, let him say: 'O Allah, bless it for us and increase it for us,' for there is nothing that suffices for food and drink except milk." This was narrated by Ahmad, Al-Tirmidhi, and Abu Dawud. Al-Munawi and Ibn Abd al-Barr lean towards the view that the supplication can also be made after eating. Ibn Abd al-Barr mentioned that among the supplications is: "Praise be to Allah, Lord of the Worlds. O Allah, bless for us what You have provided us and protect us from the punishment of the Fire," after eating.