Valmiki Ramayana Kishkindha Kanda Sarga 11 Shloka 89

अत्र here (in this case), तव your, बलम् strength, अधिकं वा is more or, तस्य वा or his, ज्ञातुम् to know, न शक्यम् not able, राघव Rama, आर्द्रम् wet, शुष्कमिति dried, एतत् this, सुमहत् great, अन्तरं हि difference.

'I was unable to gauge whether your strength is more than his (Vali's) since there is a great difference between a dry body and a wet one.