It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: "Does any one of you like that he should return to his family with three pregnant she-camels?" The companions said, "Yes (everyone would like that)." The Noble Prophet (peace and blessings be upon him) said: "Whoever recites three verses of the Noble Qur'an in prayer, for him those three verses are better than three pregnant she-camels."
And the two prayers that are heaviest upon the hypocrites are the ‘Isha prayer and the Fajr prayer. If they knew the reward for these prayers, they would certainly attend them, even if they had to crawl on their knees.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 10016