Explanation of Hadith "None of you will be save by your deeds" - Ibn Rajab

Explanation of Ibn Rajab of the following Hadith mentionned in Sahih al-Bukhari (6463) :

On the authority of Abu Hurayrah that the Prophet said, "Your actions alone will not save any of you." They asked, 'Messenger of Allah, not even you?' He replied, "Not even me, unless Allah were to envelop me in His mercy. Be firm; steadfast and balanced; and journey [to Allah] in the beginning of the day, the end of the day, and a portion of the latter part of the night. Moderation, moderation! Through this will you attain your goal!"

Edition verified and authenticated.