Kubera is also called dhanadena. It can be seen from first sarga of Bala Kanda of Valmiki Ramayana
विष्णुना सदृशो वीर्ये सोमवत्प्रियदर्शनः |
कालाग्निसदृशः क्रोधे क्षमया पृथिवीसमः || १-१-१८
धनदेन समस्त्यागे सत्ये धर्म इवापरः |
viirye = in valour; vishNunaa sadR^ishaH = comparable to Vishnu; somavat priya-darshanaH = attractive in look like the moon; krodhe = in anger; kaala-agni-sadR^ishaH = matchable to the world ending fire; kShamayaa pR^ithvii samaH = equals to the Earth in forgiveness; tyage = in benevolence; dhanadena samaH = equal to Kubera [God of Wealth]; satye = in candour; aparaH = with no rival; dharmaH iva = like Truth personified. [18, 19a.]
What is the meaning of dhanadena and why is he Kubera called so?