Value of Prayers
قَالَ أَبُو عَبْدِ اللٌّهِ (ع): صَلاَةٌ فَرِيضَةٌ خَيْرٌ مِنْ عِشْرِينَ حَجَّةً وَ حَجَّةٌ خَيْرٌ مِنْ بَيْتٍ مَمْلُوءٍ ذَهَباً يُتَصَدَّقُ مِنْهُ حَتَّى يَفْـنَى
Imam Sadiq (A.S) said: “One obligatory prayer is better than performing Hajj twenty times, and the performance of one Hajj is better than giving away a house full of gold.”
Biharul Anwar, Volume 82, Page 227
Other links:
The Benefits of Prayers