Allaamah Rabee Ibn Haadee Al-Madkhalee (may Allaah preserve him) stated:
Indeed steadfastness upon the Sunnah means steadfastness upon Islaam in its entirety; it’s Usool (Foundations), its Furoo’ (Branches), it’s Aqaa’id (affairs of creed, belief); it’s Manaahij (Methodologies). We (must) remain steadfast upon it and we (must) hold tightly onto it, up until we meet Allaah (The Blessed and Most High).
And indeed the Aayaat concerning the religious obligations of ittibaa’ (following), iltizaam (adhering), i’tisaam (clinging) and istiqaamah (steadfastness) are many. And Ahaadeeth likewise, all of which point towards one goal or aim and this is the steadfastness of the Muslimeen upon Islaam.
And if one were to speak about steadfastness upon the Sunnah, it is not that which is understood by the majority of the people with regards to the word Sunnah, rather its intent here is Aqeedah and Manhaj, meaning Islaam, meaning steadfastness upon Islaam.
This Steadfastness is from the Tawfeeq of Allaah. Tawfeeq is in His Hands and guidance is in His Hands, and misguidance is in His Hands. He guides whomsoever He wishes; misguides whomsoever He wishes; keeps steadfast (the hearts) of whom He wishes and deviates the hearts of whomsoever He wishes. And due to this, Allaah (The Blessed and Most High) informed us to supplicate to Him so that He may not deviate our hearts; [ رَبَّنَا لَا تُزِغْ قُلُوبَنَا بَعْدَ إِذْ هَدَيْتَنَا وَهَبْ لَنَا مِن لَّدُنكَ رَحْمَةً ۚ إِنَّكَ أَنتَ الْوَهَّابُ -(They say): “Our Lord! Let not our hearts deviate (from the truth) after You have guided us, and grant us mercy from You. Truly, You are the Bestower. (3:8)]
And the Sahaabah, radhiyallaahu-Anhum said: “By Allaah! If it were not for Him, we would not have been guided, We would not have given(in charity), nor would we have prayed”. Meaning, they (the companions) knew and understood that Guidance from Allaah (The Most High) was a blessing and a virtue from Him, and a mercy from Him to whomsoever He selects from His Servants.
يَخْتَصُّ بِرَحْمَتِهِ مَن يَشَاءُ ۗ وَاللَّهُ ذُو الْفَضْلِ الْعَظِيمِ
“He selects for His Mercy (Islam and the Quran with Prophethood) whom He wills and Allah is the Owner of Great Bounty”. [3:74]
He (Glorified and Exalted Be He) blesses whom He wishes and gives virtue to whomsoever He wishes with His Guidance. He gives them Good and He grants them Tawfeeq and blesses them with His protection from deviation and misguidance.
The statement ‘He Misguides whom he Wills’: The misguidance here refers to complete misguidance, such as kufr and (one’s) exiting from (the fold of) Islaam – We seek Refuge with Allaah (The Most High) from that. And as for the Partial misguidance: This refers to the misguidance of one who enters into Islaam and he then deviates in his Aqeedah (beliefs) and in his Manhaj (Methodology) – We seek refuge with Allaah from that. [End Of Shaykh Rabee’s Speech.This particular extract is from the risaala, Ath-Thibaat Ala As-Sunnah (Steadfastness upon the Sunnah)].
 Narrated As such by Ahmad (4/46, 47 and 50) and Bukhari, with the number 4169 and 4196 and Muslim, number 1802. It is from the hadeeth of Salamah Ibn Al-Akoo’ radhiyallaahu ‘Anhum.
This extract was translated and shared by one of our Salafi Shabaab from Birmingham. May Allaah preserve him and make him a source of khayr for the Ummah and his parents. Aameen