Angels
تَنَزَّلُ الْمَلائِكَةُ وَ الرُّوحُ فِيها بِإِذْنِ رَبِّهِمْ مِنْ كُلِّ أَمْرٍ {4}
The Angels and the Spirit are descending during it by Permission of their Lord regarding every matter [97:4]
And from Al-Sadiq-asws, that he-asws said: ‘It will be remaining (keep occurring) up to the Day of Judgement, because had it been Lifted, the whole of the Quran would be Lifted, because in it is: The Angels and the Spirit are descending during it [97:4], and the Glorious has used the word in future tense, and did not Say “Came down”, by the word in the past tense.
وذلك حق، لانها لا تجئ لقوم دون قوم، بل لسائر الخلق، فلا بد من رجل تنزل عليه الملائكة والروح فيها بالامر المحتوم في ليلة القدر في كل سنة
‘And that is truth, because it is not for one community but for all other communities. It is for all of the creation. There needs to be a man on whom the Angels and the Spirit descend on with the inevitable Commands during the Night of Pre-determination (Laylat Al-Qadr) in every year.
ولو لم يكن كذلك لم يكن بكل أمر. ففي زمن النبي صلى الله عليه وآله كان هو المنزل عليه، ومن بعده على أوصيائه أولهم أمير المؤمنين وآخرهم القائم عليهم السلام وهو المنزل عليه إلى يوم القيامة، لان الارض لا تخلو من حجة الله عليها، وهو الحجة الباقية إلى يوم القيامة عليه وعلى آبائه أفضل الصلاة التامة
And, had it not been like that, it would not happen with ‘every matter’. In the era of the Prophet-saww these Came down upon him-saww, and after him-saww on his-saww successors-asws, the first of whom is the Amir Al-Momineen-asws, and the last of them is Al-Qaim-asws, and these will Come down upon him-asws up to the Day of Judgement, for the earth cannot be empty of the Divine Authority of Allah-azwj on it, and he-asws is the Divine Authority that would remain up to the Day of Judgement. Upon him-asws and upon his-asws forefathers are the best of the greetings.’[1]
[1] Taweel Al Ayaat – Ch 97 H 7