SB 1.15.1
suta uvaca
evam krsna-sakhah krsno
bhratra rajña vikalpitah
nana-sankaspadam rupam
krsna-vislesa-karsitah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Suta Gosvami said: Arjuna, the celebrated friend of Lord Krsna, was griefstricken because of his strong feeling of separation from Krsna, over and above all Maharaja Yudhisthira’s speculative inquiries.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Being too much aggrieved, Arjuna practically became choked up, and therefore it was not possible for him to reply properly to the various speculative inquiries of Maharaja Yudhisthira.