What are the wholesome qualities? Namo Buddhaya. At many places in the Suttas, Buddha calls for development of wholesome qualities. I guess Love , Joy , Compassion , Equanimity,Honesty,Conscience are wholesome qualities but that is the not the final list of wholesome qualities. 

My question is : Is there a Sutta in which Buddha lists all the wholesome qualities one should develop in order to attain Nirvana?
The 25 beautiful mental factors (sobhanaa cetasika) from the Abhidhamma (which is not sutta but is derived from the Buddha's teachings):


  The beautiful mental factors. There are twenty-five beautiful factors.
  Nineteen are common to all beautiful thoughts, six are variable. The
  latter are the three "abstinence factors," two "illimitables," and the
  wisdom factor.
  
  The common beautiful factors (sobhanaa saadhaaranaa) are as follows:
  
  
  Confidence (saddhaa), also called faith, which for a Buddhist means
  trust in the Three Jewels — the Buddha, Dhamma, and Sangha, and in the
  principles of the Buddha's teachings.
  Mindfulness (sati): this is alertness, which makes us aware of what is
  happening to us, from moment to moment, through the five physical
  senses and the mind. Mindfulness is essential to insight meditation,
  when it must be conjoined with a clear comprehension of the
  suitability, purpose, and conformity with reality of any action. Then
  it is called right mindfulness (sammaa sati). Usually the average
  person acts without any form of mindfulness; his acts are prompted by
  force of habit. Right mindfulness has two functions: one is to
  increase the power of recollection and the other is to evaluate what
  is wholesome and what is unwholesome. Right mindfulness is a spiritual
  faculty that maintains a proper balance of the other faculties —
  faith, energy, concentration and wisdom.
  Shame of evil (hiri) and
  fear of evil (ottappa) are the opposites
  of the second and third unwholesome mental factors, already discussed.
  Non-attachment (alobha) restrains attachment and fosters generosity.
  Good-will (adosa) is synonymous with loving kindness (mettaa). It
  keeps a person free from resentment and anger.
  Equanimity (tatramajjhattaa, upekkhaa) is balance of mind, a quality
  of neutrality free from attachment and repulsion.
  
  
  The other twelve common beautiful factors fall into six pairs, one member affecting the "body" of mental factors (kaaya), the other
  affecting consciousness as a whole (citta). The six are as follows,
  the terms themselves indicating their nature:
  
  
  composure (passaddhi) of the mental factors
  composure (passaddhi) of consciousness
  buoyancy (lakhutaa) of the mental factors
  buoyancy (lakhutaa) of consciousness
  pliancy (mudutaa) of the mental factors
  pliancy (mudutaa) of consciousness
  efficiency (kammaññataa) of the mental factors
  efficiency (kammaññataa) of consciousness
  proficiency (paguññataa) of the mental factors
  proficiency (paguññataa) of consciousness
  rectitude (ujukataa) of the mental factors
  rectitude (ujukataa) of consciousness
  
  
  The abstinence factors (virati) restrain a person from committing evil
  acts. These are three in number:
  
  
  Right speech (sammaa vacaa) is abstinence from lying, slandering,
  abusive language, and idle talk.
  Right action (sammaa kammantaa) is abstinence from killing, taking
  what is not given, and wrong conduct with regard to sense pleasures.
  Right livelihood (sammaa aajiiva) is abstinence from any livelihood
  that brings harm to other living beings.
  
  
  The illimitable factors (appamaññaa) are compassion and sympathetic
  joy; they are called illimitable because they are boundless and extend
  to all living beings.
  
  
  Compassion (karu.naa) has the nature of being moved by the suffering
  of others. The sadness we might experience over the suffering or loss
  of a loved one is not true compassion. Such sadness is sentimental, a
  manifestation of grief. Real compassion arises when the mind, detached
  from self-referential concerns, is stirred by the suffering of others,
  feeling the suffering as its own.
  Sympathetic joy (muditaa) has the nature of rejoicing in other's
  happiness. Usually people rejoice at the success of someone who is
  near and dear to them, but it is rare for them to rejoice when success
  and prosperity are enjoyed by someone unknown, not to speak of an
  adversary. Muditaa embraces all beings and cannot coexist with the
  unwholesome mental factor of jealousy.
  
  
  Compassion and sympathetic joy, together with goodwill and equanimity,
  form the Four Sublime Abodes (brahma vihaara). Goodwill and equanimity
  were mentioned under the common beautiful factors.
  
  The wisdom factor (paññaa) enables one to see things as they truly
  are, that is, in the light of impermanence, unsatisfactoriness and
  selflessness.