Squeezing in the grave

This (meaning Sād b. Muadh) is the one at whose death the Throne shook, the gates of heaven were opened of him and seventy thousand angles attended his funeral. It squeezed him once then released him."  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ هَذَا الَّذِي (يعني سعد بن معاذ) تَحَرَّكَ لَهُ الْعَرْشُ وَفُتِحَتْ لَهُ أَبْوَابُ السَّمَاءِ وَشَهِدَهُ سَبْعُونَ أَلْفًا مِنَ الْمَلاَئِكَةِ لَقَدْ ضُمَّ ضَمَّةً ثُمَّ فُرِّجَ عَنْهُ