Bg 11.46

kiritinam gadinam cakra-hastam
icchami tvam drastum aham tathaiva
tenaiva rupena catur-bhujena
sahasra-baho bhava visva-murte

Word for word: 
kiritinam — with helmet; gadinam — with club; cakra-hastam — disc in hand; icchami — I wish; tvam — You; drastum — to see; aham — I; tatha eva — in that position; tena eva — in that; rupena — form; catuh-bhujena — four-handed; sahasra-baho — O thousand-handed one; bhava — just become; visva-murte — O universal form.

Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
O universal form, O thousand-armed Lord, I wish to see You in Your four-armed form, with helmeted head and with club, wheel, conch and lotus flower in Your hands. I long to see You in that form.

Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
In the Brahma-samhita (5.39) it is stated, ramadi-murtisu kala-niyamena tisthan: the Lord is eternally situated in hundreds and thousands of forms, and the main forms are those like Rama, Nrsimha, Narayana, etc. There are innumerable forms. But Arjuna knew that Krishna is the original Personality of Godhead assuming His temporary universal form. He is now asking to see the form of Narayana, a spiritual form. This verse establishes without any doubt the statement of the Srimad-Bhagavatam that Krishna is the original Personality of Godhead and all other features originate from Him. He is not different from His plenary expansions, and He is God in any of His innumerable forms. In all of these forms He is fresh like a young man. That is the constant feature of the Supreme Personality of Godhead. One who knows Krishna becomes free at once from all contamination of the material world.