كَذَلِكَ يُوحِي إِلَيْكَ وَإِلَى الَّذِينَ مِن قَبْلِكَ
...
Likewise Allah, the Almighty, the All-Wise sends revelation to you as to those before you.
means, `just as this Qur'an has been revealed to you, so too the Books and Scriptures were revealed to the Prophets who came before you.'
...
اللَّهُ الْعَزِيزُ
...
Allah, the Almighty, (means, in His vengeance),
...
الْحَكِيمُ
the All-Wise, (means, in all that He says and does).
Imam Malik, may Allah have mercy on him, narrated that A'ishah, may Allah be pleased with her, said,
"Al-Harith bin Hisham asked the Messenger of Allah, `O Messenger of Allah, how does the revelation come to you?'
The Messenger of Allah said:
أَحْيَانًا يَأْتِينِي مِثْلَ صَلْصَلَةِ الْجَرَسِ وَهُوَ أَشَدُّهُ عَلَيَّ فَيَفْصِمُ عَنِّي وَقَدْ وَعَيْتُ مَا قَالَ وَأَحْيَانًا يَأْتِينِي الْمَلَكُ رَجُلً فَيُكَلِّمُنِي فَأَعِي مَا يَقُول
Sometimes it comes to me like the ringing of a bell, which is the most difficult for me; then it goes away, and I understand what was said.
And sometimes the angel comes to me in the image of a man, and he speaks to me and I understand what he says."
A'ishah, may Allah be pleased with her, said,
"I saw him receiving the revelation on a very cold day, and when it departed from him, there were beads of sweat on his forehead."
It was also reported in the Two Sahihs, and the version quoted here is that recorded by Al-Bukhari.