Valmiki Ramayana Bala Kanda Sarga 66 Shloka 23
Original Shlokaततो देवगणान् सर्वान् तपसाऽहं प्रसादयम्। ददुश्च परमप्रीता श्चतुरङ्गबलं सुरा:।।1.66.23।।
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तत: thereafter, अहम् I, तपसा by austerities, सर्वान् all, देवगणान् multitude of devatas, प्रसादयम् propitiated them, सुरा: devatas, परमप्रीता: were highly pleased, चतुरङ्गबलम् (divine) army of four divisions, ददु: gave.
Thereafter, I propitiated the gods by my austerities. Highly pleased, they gave me an army of four divisions (chariots, elephants, horses and infantry ).