Hadith

Abu Hurairah and Abu Sa’eed (RadiyAllaahu Anhu) both say that Prophet (SallAllaahu Alayhi Wa Sallam) said, “Whoever wakes up at night and wakes his family up, then they both perform two Raq’aats of Salaah, they will be written from amongst those males and females who remember Allah excessively.”
[Abu Dawood 1451, Sahih by Albani]

The Prophet (SallAllaahu Alayhi Wa Sallam) said in a hadeeth : Whoever has a mustard of Arrogance in his heart will not enter Jannah. Upon having asked what this arrogance meant, the prophet (SallAllaahu Alayhi Wa Sallam) replied " It means to belittle someone (mocking, hurting, taunting, etc) and deny the truth."  [Saheeh Muslim]

Reported by Abu Hurairah (RA): The Messenger of Allah (peace be upon him) said: "Three supplications are answered without doubt. The supplication of the oppressed, the supplication of the traveller, and the supplication of the parent for his son." [Tirmidhi & Abu Dawud]

Reported by Abu Hurairah (RA): The Messenger of Allah (peace be upon him) said "When a man dies, his deeds come to an end, except for three: A continuous charity, knowledge by which people derive benefit, pious son [i.e. offspring] who prays for him." [Muslim]

Reported by Abu Hurairah (RA): I heard the Messenger of Allah (peace be upon him) saying: "There is a surah in the Qur'an which contains thirty Ayat which keep interceding for a man until his sins are forgiven. This Surah is "Blessed is He in Whose Hand is the dominion - Surat Al Mulk." [Tirmidhi & Abu Dawud]

Reported by Abdullah bin 'Amr bin Al-'As (RA): The Prophet (Peace Be Upon Him) said, "The one who was devoted to the Qur'an will be told on the Day of Resurrection: 'Recite and ascend (Rank in Jannah) as you used to recite when you were in the world. Your rank will be at the last Ayah you recite." [Abu Dawud & Tirmidhi]

Reported by Abdullah bin 'Amr bin Al-'As (RA): A man asked the Messenger of Allah (Peace Be Upon Him): "Which act in Islam is the best?"

He (peace be upon him) replied, "To give food and to greet everyone, whether you know or you do not."  [Bukhari & Muslim]

Narrated by Abu Huraira (RA): The Prophet (Peace Be Upon Him) said: "A time will come when one will not care how one gains one's money, legally or illegally."
[Sahi Bukhari: Vol 3: Book 34: Hadith No 275]

Reported by Umar bin Al-Khattab (RA): The Messenger of Allah (peace be upon him) said: "Whoever of you performs Wudu' carefully and then affirms: 'Ash-hadu a la ilaha illallahu Wahdahu la sharika Lahu, wa ash-hadu anna Muhammadan 'adbuhu wa Rasuluhu [ I testify that there is no true god except Allah alone, Who has no partners and that Muhammad (Peace Be Upon Him) is His slave and Messenger], the eight gates of Jannah will be opened for him. He may enter through whoever of these gates he desires (to enter)." [Muslim]