(and a little souvenir at the end)
Al-Zuhri related from Sa'id ibn al-Musayyib.
He said: The people were not going out of Mecca until Ali ibn al-Husayn (Al-Sajjad), the chief of the worshippers (upon him be peace) went out.
So he went out, and they went out with him.
He stopped in one of the way stations and prayed two rak'as. Then he glorified God - I mean with this glorification - during his prostration.
There was no tree and no clod of earth that did not glorify along with him, so we were frightened.
He raised his head.
He said: O Sa'id, are you frightened? I said: Yes, O son of the Messenger of God!
He said: This is the greatest glorification. It was related to me by my father from his grandfather from the Messenger of God (God bless him and his Household).
No sins remain with this glorification.
When God (majestic is His majesty) created Gabriel, He inspired him with this glorification.
It is God's greatest name.
One of his Glorifications of Allah (Sahifa Al-Sajjadiyya - Number 56 - please refer to the arabic recitation online)
1 Glory be to Thee, O God,
and I beg Thy loving care!
2 Glory be to Thee, O God,
and high art Thou exalted!
3 Glory be to Thee, O God,
and might is Thy loincloth!
4 Glory be to Thee, O God,
and mightiness is Thy cloak!
5 Glory be to Thee, O God,
and magnificence is Thy authority!
6 Glory be to Thee, All-Mighty!
How mighty Thou art!
7 Glory be to Thee!
Thou art glorified in the highest!
Thou hearest and seest what is under the soil!
8 Glory be to Thee!
Thou art witness over every whispered conversation!
9 Glory be to Thee,
the place where every complaint is put down!
10 Glory be to Thee,
present in every assembly!
11 Glory be to Thee,
object of great hopes!
12 Glory be to Thee!
Thou seest what is at the lowest depth of the water!
13 Glory be to Thee!
Thou hearest the breaths of the fish
in the lowest depths of the oceans!
14 Glory be to Thee!
Thou knowest the weight of the heavens!
15 Glory be to Thee!
Thou knowest the weight of the earths!
16 Glory be to Thee!
Thou knowest the weight of the sun and the moon!
17 Glory be to Thee!
Thou knowest the weight of the darkness and the light!
18 Glory be to Thee!
Thou knowest the weight of the shadow and the air!
19 Glory be to Thee!
Thou knowest the weight of the wind,
how many times it is greater than the weight of a dust mote!
20 Glory be to Thee,
All-holy, All-holy, All-holy!
21 Glory be to Thee!
I wonder how any who knows Thee could fear Thee not!
22 Glory be to Thee, O God,
and Thine is the praise!
23 Glory be to God, the All-high, the All-Mighty!
'O God, carry us in the ships of Thy deliverance, give us to enjoy the pleasure of whispered prayer to Thee, make us drink at the pools of Thy love, let us taste the sweetness of Thy affection and nearness, allow us to struggle in Thee, preoccupy us with obeying Thee, and purify our intentions in devoting works to Thee, for we exist through Thee and belong to Thee, and we have no one to mediate with Thee but Thee!' Imam Sajjad ('A); Sahifa al-Sajjadiyya