Explanation of As-Saakhah
Imam Ibn Kathir

Then when there comes as-Saakhah Ibn Abbaas (radiaAllaahu anhuma) said, “As-Saakhah is one of the names of the Day of Judgement that Allah has magnified and warned his servants of.” [Reported in at-Tabari 24:229]

Then when there comes as-Saakhah That day shall man flee from his brother.And from his mother and his father. And from his wife and his children. Every man that Day will have enough to make his careless of others. [Surah Abasa 80:33-37]
Ibn Jareer said, “Perhaps it (as-Saakhah) is a name for the blowing into the Trumpet.” Al-Baghawi said, “As-Saakhah means the thunderous shout of the Day of Judgement. It has been called this because it will deafen the ears. This means that it pierces the ears to such an extent that it almost deafens the ears.”

That Day shall a man flee from his brother. And from his mother and his father. And from his wife and his children.

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