أُو۟لَـٰٓئِكَ يُجْزَوْنَ ٱلْغُرْفَةَ بِمَا صَبَرُوا۟ وَيُلَقَّوْنَ فِيهَا تَحِيَّةً وَسَلَـٰمًا
Ulaaa'ika yujzawnal ghurfata bimaa sabaroo wa yulaqqawna feehaa tahiyyatanw wa salaamaa
These servants will be rewarded with the highest place in Paradise for their steadfastness. There they will be met with greetings and peace.
These are the ones who will be rewarded with the highest chamber for their patient endurance, and there they will be received with greetings and peace,
Patience is the reason given, though patience appears nowhere in the long list of traits running from verse 63. What that list described was restraint: answering the ignorant with peace, holding spending between waste and meanness, passing idle talk by with dignity. All of it is named sabr here in retrospect, and the reward, ghurfa, is an upper room, the highest and most private part of a house.